It can help at the higher RPMs since you're essentially creating more plenum volume. If you do go this route, I would recommend a phenolic spacer to provide the carburetor a little more heat insulation from the manifold. Good luck and let us know how it works with your combination.I have been told i can get a little more performance out of my car if i install a carb spacer. I now have an edelbrock R.P.M. airgap dual plane with a750 cfm edelbrock carb. Question is do i use an open spacer or 4 hole 1" adapter.
X2! My combo prefers a open spacer. I didn't like the "feel" of the tapered 4 hole.Every engine likes something different, it may or may not like one, but i keep reading that a wilson spacer usually makes around 10+hp.
They're not plastic...the Wilson Manifold spacers are machined from billet aluminum. I run either a 1-inch tapered, a 1-inch 4-hole or 1.5-inch 4-hole (depending on atmospheric conditions) Wilson Manifolds spacers on my race car.YEah, those wilsons look pretty bad ***. 30+ hp gains from a little plastic piece though??
u talking about that piece of crap broken one in ur tool bag hahai use to run a 1'' open carb spacer on my motor i saw no differance in performance at the track :no: so i took it off and just run carb to manifold :yes: if your trying to just cool the carb heat why not try a wood spacer !!!!!