I've installed the intake and am now just wrapping up the details.

I'm having a few problems:

1) I need a vacuum fitting for the intake to control the headlights,A/C and tranny. The original is too high to clear the Speed Demon. Any suggestions like just using a brass fitting the same thread size and 'teeing' it off to the different vaccuum hoses??


2) What is the size of the heater hose fitting? I bought one, but it is the wrong size.

3) How do I extend the wires for the electric choke safely? Mine don't reach. Also, what fittings do I need?


4) Where should I cut the fuel line so that I don't kink the rubber hose?
I can't seem to reach that far down because the A/C compressor is in the way and the bolt to move it over won't budge.


Thanks, Les

 

ttt

 

Hi Les,
Nice setup you have! I will try to lend a "hand" to your questions. I am sure others will chime in...

1. My 1970 I believe, has 1/2 threads and 5/8 fitting for the hose side. I looked at www.corvettecentral.com and typed in heater fitting. They have a wide assortment with various bends to "snake around" the fuel line that is now in your way. Also, for your vacuum needs, they have an assortment of these fittings as well.

2. Since you added these upgrades to your car, I assume you can manage a little soldering... hee hee. Just clip your existing wire, solder in a piece in the middle and then reattach to the carb. Make sure you use shrink wrap. I pays not to be lazy here!!! Fuel... Spark
2a. You could just find the origin of the choke wire and replace the whole wire with a new one that is longer.

3. I used a braided line from my fuel pump to carb so I didn't need to worry about the bends. However, you set up will work also. YOU WILL need to get under the car to make sure you don't kink the line. It should have a pretty smooth path up to the carb line. Watch for clearance on the front belts if that is the path you take. I ran mine tight to the block and brought it up behind all the accessories and brackets.

4. Also, just a note... not busting chops here but... your really need to watch when you have the valve covers off. You don't want debris getting down there. Some say no big deal... but if you can prevent it.. why not! Hope this helps you.

 

I had that problem too, I ran the hose for the vaccum right to the back of the carb, flip it upside down you'll see a tube

 

I had the same vacuum fitting problem with my 77. Went to "Year One Next Generation Restoration & Performance Parts" as per Lars suggestion and bought a low profile three port fitting. They had all kinds of vacuum fittings for Camaro & Firebirds. Check it out.
WWW.nextgenparts.com
Eddie

 

did you stay mostly in the camaro and firebird catalogs? thks bob

 

i tried a three port fitting from mo speed. It was still to tall for my demon and rpm air gap

anyways, i ran my brakes, headlights and misc crap to the rear port on the carb. I ran the tranny to the port on the left port, if looking at the carb from the passenger side.

haven't had a problem yet

 

on a side note, how did you get the heater hose to fit. i ended up running mine around to the passenger side.

 

Do you have any pics???

 

sorry no pics. the 3 port fitting was about an 1/8 in too tall. i tried to run a carb spacer, but that just created more issues.

i just t-d up the lines from the back port, with a couple of multi sized t's to fit the various sized vacuum lines.

 

AGVI,
You wrote
"4) Where should I cut the fuel line so that I don't kink the rubber hose?
I can't seem to reach that far down because the A/C compressor is in the way and the bolt to move it over won't budge.


I was working on my 73 this weekend and found that even after I had the bolt to the front loose, the A/C itself would not move. I found out that there is another bolt to the back of the A/C unit that needs to be loose also.

So I was asking if the bolt itself wouuld not budge, or the A/C unit would not move after the bolt was loose.

kdf 1973 454
kdf 1986 L98

 

the bolt wouldn't budge, but I solved the problem.

 

To extend your choke wires (Given its electric...) Cut the wire, remove the insulation on a 1/2 inch piece, do the same to a wire thats long enough to give you enough slack... Twist the two together, heat up the wire with a soldering iron, put some rosen core solder on the splice (touch it to the wire)

Do that on both of your splices, wrap it up with electrical tape once the splice is cool... just make sure that your solder joints are not going to be moved around much! Solder isnt a mechanical bond... its more of a electrical joint corrosion protector!

 

I searched for a three port low profile and it worked great. Let me see if I still have it, cause I went back to the original fitting & manifold before selling the car. If I have it, I'll send ya a pic. OK???
Eddie

 

Eddie thks, i orderd the year one catalogs yesterday.. thks bob

 

Bob, Did you find a low profile three port fitting?

How about you Silvr77? Did you ever find out what part number you ordered?

Thanks, Les