Carb spacer or not

[mainermikeyd]

Are you guys running a spacer on your carbs or not?? Edelbrok 1405, with a performer intake, been reading alot an the popular myth orf running a spacer doesn't necessarily mean power gains, whats your opinion??

[68 TT]

Originally Posted by mainermikeyd

Are you guys running a spacer on your carbs or not?? Edelbrok 1405, with a performer intake, been reading alot an the popular myth orf running a spacer doesn't necessarily mean power gains, whats your opinion??

Every engine & vehicle responds differently to what the spacer does so the only way to know for sure is trial & error.

[knockretard]

I am running one to defeat my fuel boiling issue.My edel 1406 would heat up and boil the fuel causing a hard start if I tried to restart soon after. My 1" spacer cured the problem.

[billnorman]

I see you are in Maine. Wait until summer to space the carb up to prevent icing.

[Mr.Scary]

I dont know about the myths or wut not or whether or not they provide HP gains, but I they are pretty cheap and most everyone that Ive ever known runs them and so do i. Like 68 TT said trial and error but I would run one just 4 kicks n e way!!

[68 TT]

Try one of the 4-hole stacked plate heat shield type ones instead of a plain spacer.

The thermal break will make a real world improvement and the 4-hole design will not mess with the dual plane design of your intake and move your power band like an open spacer would.

http://www.summitracing.com/parts/MRG-3710/?image=large

This is what I have on my truck and have used them on everything I have built over the years. It has always made a noticeable improvement when the engine is warmed up where before the heat shield the carb would have been heat soaked. Keeping the fuel cool is always good.

[asphaltburner]

Yo! mainermikeyd!
2" underneath FRANKENTRUCKs' 600 Holley and a 1" below my '76 Camaros' 625 Carter AFB (couldn't fit anything taller, even with the cowl induction hood! My '68 Mustangs' 302 has a 1", but nobody wants to hear that here!).
The best reason to use a spacer is to reduce heat soak from the manifold, allowing a cooler fuel intake and helping to avoid vapor lock.
A carb spacer does not increase power, but it does increase low end torque (slightly),...a high rise manifold is the proper item to take advantage of this effect.
And they're cheap!
I've never experienced icing, despite very low temps, but I'm in Colorado and our humidity is generally lower than most folks.
Todd.

[slugish]

hAVE A 1/2 IN WOODEN SPACER ON MY 400. aLSO HAVE A AIRGAP MANIFOLD __ think the 1/2 in wooden really helped > before had a 2 in plastic spacer wkhich I feel was too much > lost torque . But I agree with some of the others-- too many variables involved to say which one will help you the most . Just have to try & see what happens

[piecesparts]

I put an Edelbrock phenolic spacer under my AVS carb, to keep the heat off of the carb bowls. I have a 383 stroker motor in my 84 GMC. It sure helped and the engine runs fine with it.

[McSwine]

Originally Posted by knockretard

I am running one to defeat my fuel boiling issue.My edel 1406 would heat up and boil the fuel causing a hard start if I tried to restart soon after. My 1" spacer cured the problem.

Would you mind telling me where you got your spacer? I have EXACTLY the same problem.

[68 TT]

Originally Posted by McSwine

Would you mind telling me where you got your spacer? I have EXACTLY the same problem.

Check post #6 above. It is a combination heat shield and carb spacer all in one.

[von guido]

on a stret motor put a 4 hole phenolic spacer on. On race motors, i have seen a wilson open 2" spacer give an extra 15 hp on the dyno.