My ZZ430 had 750 dp , 750 vac and a 800 dp . Once dialed in the 800 was the best over all in driving and performance. .

I been asking and reading on the Holley and Fast systems because I just felt that EFI would offer a much better all around driving experience.

The install was not bad , I did have a delay with the fuel pump , I got the in line and realized what a silly error that was ,, Ordered 1982 sending unit and swapped out the in line for the in tank system, Which offers up to 650 hp fuel delivery , and was easy as pie to install into the tank

The computer and wiring also where fairly easy to deal with I had made some up grades that paid off like a MSD in distributor module that had a tach connector that was important to have because it was a clean signal that's required for the ECU to process.. I also had the O2 bung from using my A/F gauge

So in it all goes , move this do that clip this , screw that and then the big moment , turn on key energize the system and set fuel pressure... Anxious and worried I twisted the key and everything came right up.. SO I checked fuel supply for leaks , adjusted pressure to 43psi and plugged in the hand held monitor / programmer. I set the TPS by the directions and was ready to see if all that cash and work were worth it.

Now after sitting for 2 days I reached in the window and cranked her over and right away she fires up hits a high idle and slowly drops off to about 900 rpm .. I get the programmer / directions and follow the steps letting the motor idle up to full operating temp.

That done I put on my drop base air cleaner , look for leaks one more time , make sure all connections are away from heat sources and take her out for a test drive.


I can only call this FAST system,,,, WOW ... Just plain wow .. After 30 minutes of mixed driving i stopped on a dark lonely road in my area and unleashed the gods of fuel injection , the ZZ430 , tied to the 700R4 pumping back to the 3.92 gears took off like the incredible hulk bursting through a wall.. 1st 6300 ,, bam 2ond 6100 bam 3rd 6100 .. and it was time to hammer the breaks because that dark quiet road suddenly had an end to it ... LOL....

I know some mods we do we sorta feel a difference BUT this was staggering , the car is so much more powerful in any range of driving it is not the same car , and the carbs i had used all did the jobs well all set up to Lars directions , all dialed in with an A/F gauge ... But they where just no where close to what the fast system provides me .

One HUGE difference in OD with lock up at 35mph ,, with the carb it sucked , 60 in OD in lock up ahhh it was ok .. With the EFI night and day it maintains and meters the fuel perfectly from any speed even in lock up and I can accelerate as slowly or as fast as i want and the lock up behaves it self because the motor is behaving itself ..


Ya EFI fast , holley or others .. it makes a staggering difference even when you replace a carb that has no issues..

 

Do you more details on your fuel system? Did you use the stock lines, all new lines, or new feed line using the old feed line as a return line? Fueling is my primary concern for the TPI swap.

 

Sounds like a lot of fun running a new ZZ430 350 CI crate engine with about 430 HP and a new EFI Injection system installed. Those are not inexpensive engines and from the sounds of worth every penny spent.

 

I assume this is the EZ 2.0 system?

I am beginnig my swap on a 496 tomorrow! My car runs great right now with a Prosystems 4150 carb but I am super exicted to get the EZ-EFI installed!

Glad to hear someone else with a good experience!

 

I used the steel stock line for supply , I then bought braided hose for the return line as it must be 3/8 just like the supply.

I am Using the EZ EFI .. Not the 2.0 . .

Sun is up , it may be last day of the season I can drive her , Ya all know this Yankee is going to do battle with the surface roads in a short while. l

 

I have been running the FAST EZ EFI for over 3 yrs now, and I will never go back to a carb! Sounds like you won't either!!

Going out for a drive this morning myself, it is a beautiful clear sunny day here as well, not too many days left like this for us in the snow belt!

There is a pretty good FAST product tech support forum if you run into any issues:

http://www.cpgnation.com/forum/fast-...t-support.html

 

I'm about done with carbs myself-
The last straw was the Quick Fuel SS 830 that I've been spending 2 years on trying to track down their machining defects.

The fuel system swap is my biggest concern-
You are running an 82' pick-up / pump assembly, which sounds like the way to go. Any idea if this is a direct swap in a 69' or do I need to replace my tank with a later model to be able to utilize the 82' set-up?

Also, I don't want to replace my OEM mechanical drive distributor. I have a Pertronix module and I finally have it dialed in perfectly so I don't want to have to start all over again- Will the FAST EFI work with my existing configuration?

Lastly, will the EFI be able to function properly with a somewhat aggressive cam? I have a 409 SBC with a Lunati flat tappet #60140 cam. It's not crazy wild but I am running 1.6 rockers and it does have somewhat of a lope at idle. My vacuum is around 11" at idle (900-950-ish RPM). Will these FI systems work with something like this?

Thanks for sharing your experience-
Makes me want to pursue EFI even more!

 

The 82 pump assembly does not fit in a 69 tank since there's no hole in the top of the tank for it. This may be an alternative:

http://aeromotiveinc.com/2012/11/phantom-fuel-system/

Still requires cutting a big hole in your tank, though. I ran with an inline pump for a few years and it worked. I eventually spent the big bucks and got a custom made rock valley SS tank with internal pump. Worth the money, IMO.

Yes, but you won't get computer controlled timing (of course). I doubt that your timing curve is "perfect". You'll see further gains if you enable the computer to control your advance.

A cam is not a problem. OEM EFI didn't like big cams, but it was a function of the OEM programming, not a limitation of EFI. The aftermarket EFI systems handle cams just fine.

 

Thanks for the info!
Yes, mechanical distributors are never 'Perfect' but I don't want to lose the mechanical tach functionality either.
Is there some sort of EI module that would fit the stock distributor that would provide electronic advance for the EFI yet allow me to keep the Delco distributor?
Thanks!
Elm

 

Sure. Install a crank trigger. Crank trigger connects to the EFI, which will connect to a CD ignition box (MSD etc). The distributor will then simply direct the spark to the right cylinder. You can gut it if you want (remove pertronix, vacuum advance), or you can leave it in. It's recommended you lock the advance mechanism. A spot weld will do, or drill a small hole and put a screw in it.

A crank trigger will also give you a more stable advance. The distributor wobbles a bit due to slack in the dizzy gears and timing chain.

 

for anyone still shopping, quick fuel has a new system that is worth looking at.

 

Nice. Sounds like a great setup.

I always hear that properly tuned a carb and efi will both make the same power, but you don't just drive your car at WOT.

Next try a 4L60e. Using a computer to program the shift points is sweet too.

 

Bought my '72 L48 vert in '95, first up was a bad radiator, second up was serp drive/eledtric fan, then brakes/wheels/tires, then L98 TPI witch is what is essentially on the car now.....

I would never go back.....carbs are for Motor Homes.....

 

The carb on my Briggs lawn mower works real well. Wouldn't want a carb on anything else though.

Just got back from what was supposed to be a relaxing drive. Turned out there was some major highway shutdown and traffic got routed through a residential area. Mile after mile of bumper-to-bumper. Stop, go forward 2 car lengths, stop, etc. Won't say it was enjoyable, but the car never misbehaved. At one point I pulled into a parking lot and shut it off to get out my phone and figure out where to go. With a carb I bet it would have vapor locked trying to restart after all the slow traffic. With EFI I just turned the key and I was off.

 

1980 C-3 ZZ430 , 700R4 3.92 rear gears . I have had 3.31 ,, 3.73 (Not bad but seller built junk ) ended up with 3.92 and the Eaton posi because that was all on the shelf available when I needed gears.

It is the end of the day .... I spent it driving and getting familiar with the system.

Carb that ran very well , except when cold .. sorta sucked cold but I also had no choke and cold could be 90 degrees out and it was temperamental until it warmed up some.

Carb drove smooth , felt good when you got into her , never a stumble or hesitation and when you put the hammer down it would jump hard .


EZ EFI ,cold easy starting , runs as good as my 2012 Sierra ... A far as driving around .

The best analogy I can make is this. Ever walk a dog that pulled every step you took and with any slack on the leash it was trying to bolt away , That is EZ EFI on my set up. No matter what your doing this motor wants to pull anytime you move that throttle it almost feels like that dog ,, hurry hurry hurry come on lets go hurry hurry hurry lmao ..

I can say every ounce of power this motor has ever had to give is front and center and accounted for and compared to the carb it is present always anytime no matter how little you want to add or how much.

I am past pleased . . . It was so worth the money , and the system can be price matched at jegs for 1829. with the in line pump

 

You have me inspired todo this. Great idea using the 82 sending unit and pump. Would you mind elaborating on the details of the fuel system, what you did for regulator etc. I am assuming the 82 pump flows good enough for this setup.

 

would you cam a engine different for EFI ?

 

The sending unit I did use but NOT the pump. I installed the EZ EFI pump . I also had to make the 1/4 inch return line bigger to 3/8 with AN fittings .

The regulator comes with the fuel kit , so if you order the EZ EFI you have to use the in "Tank" kit ,, not the in line kit.

I will also snap a photo of the system on my motor tomorrow in the am
For the computer on my 1980 I put it under the dash glove box side. and all wiring comes up from under the A/C box it is rather easy and neat.

ANY cam you have will be better off with FI

 

No, you don't have to. On certain combinations, you could run a more aggressive cam and it would run better with EFI.

 

I also installed EZ EFI on my 1980 car project. Very happy with it over all. Throttle response is excellent. Good starts hot or cold. Love being able to change settings on the fly with the hand held tuner. Also great to be able to read live data (co-pilot) on the hand held . You can make AFR and timing changes and read how the MAP is effected to see if you are going the right way. Read your AFR on your wide band O2 (included in kit) during WOT. Never looking back at a carb. Dave