zwede

When I first converted to EFI I did the same thing. The problem I had with that setup was that the engine would stumble any time I turned a corner at less than half tank.

I finally decided to upgrade the tank and now have a Rock Valley stainless tank with internal pump. Very happy with it, but it's certainly $$$.

clwi

I have runned it with 3 gallons in the tank without any issues...

clwi

Yes, new hose to the Sniper, routed it beside the old hard line and used the old one as a return.

carriljc

did you use hose or hard-line? I'm using braided hose and was thinking of going to hard-line.....if it's doable.

clwi

I used a hose provided in the kit from Holley and used the old hard line as fuel return.

750green

Did the same conversion on my 355 and start up and throttle response is amazing. One of the best upgrades to my C3 minus my T5 conversion. I mounted the fuel pump near the gas tank. Only question I have is where did you mount the 3.5 screen? Mounted mine on the dashboard near the speedo/tach.

clwi

I mounted mine on the console under the radio with a velcro strip.
Easy to monitor and move if i want.

clwi

Done some driving and its all smiles!
Feels like i have a new engine!
Set AFR values to 14,2 idle and 14,7 cruise, engine runs soo good, and the milage has gone up!
Cold start is so easy now compared to the old carb!
For you guys thinking about this...Just do it!!!

george2066

you might be lucky, I heard good and bad on this system

69monzacpe

Thinking about doing this conversion on my '69 now that I have my T5 installed. I'm in the "gathering data" mode. I have the original distributor with points so I'm thinking PerTronix conversion would be a first step, dial that in then add the EFI. I saw on Summit for the unit I'd purchase as of today they show shipping in August. I'm not in a hurry so it's not a problem for me.

clwi

Done some driving and i must say this the best thing i have done to get performance and driveability.
Coldstarts is a breese and performance is way up!
I get 16mpg mixed driving and the throttle response is awesome!
With a 468 and a Straub cam this is truly amazing!!
You guyes with carb issues, switch to this and welcome to another world!!!!

c3_dk

Just a small question regarding your T5 swap.

I have a 1987 T5WC, that I assume can be bolted right on my L46 bell house?
I assume I only need to unbolt the transmission (the 4 bolts), and leave the bell house on he engine and blot on the T5 correct?

My transmission is the factory L46 M21

Carl in LA

Agree with others... let the computer control the timing.

Don't know about Sniper but MSD Atomic uses timing control to pull the idle speed to a specified level on top of where the cable stop lets the engine idle - excellent because you can change the idle speed at will in real time with the controller.

Also better because you can somewhat dial-in an advance curve. Somewhat because if I recall correctly the MSD lets you pick a few data points such as idle advance, rpm where more advance starts and all-in rpm and total advance.

Be careful - more choices means more opportunities to screw it up - but its easy to fix because you just use the controller to change the settings... try that on your Camry.

Best,

Carl

clwi

Well, my Holley rep here in Sweden told me that i should keep me MSD dist as it is with vac advance, i wont gain anything by letting the Sniper control timing....lots of issus with MSD and controlled timing...and only way to get it fixed is to buy the Holley sync dist and thats expensive!

clwi

Final report on my EFI.
With a 468, 10,5 CR, Straub cam and Holley EFI i have achived 16mpg highway and an awesome performance...the way it pulls is amazing!!!
This is way over what i expected!!
The Straub cam works soo god with my engine with EFI.

NewbVetteGuy

16 mpg with a 468?!? I'll be happy when my lowly 350 gets 16 mpg.

Are those 16 UK / Imperial gallons (4.55 liters per gallon) or US gallons (3.8 liters per gallon)?


Adam

clwi

That is US gallons!!

chstitans42

Why did you not use the factory steel line for your main line along the frame? Is it not big enough to handle the amount of fuel that you need? I would prefer that over a rubber line from tank to engine bay

rcread

It’s not a rubber hose. Holley provides a PTFE lined hose designed for fuel injection.

chstitans42

Sure, but mu question still remains the same. Can the factory steel lines be used so the PTFE hose is at a minimum?