automanpaul

Hello:
Was wondering if anyone can give feedback about what happens when and if you use a thicker carb spacer mounting gasket on 289 engines with two V carb? Will raising the distance the carb sits on the manifold bring about any changes good or bad? I am told it can slightly raise the manifold pressure at idle, a good thing when doing a power brake upgrade!
Thanks.

Butchart

There should be no significant problems or noticeable changes. Just make sure the hood or bonnet doesn't come down on top of the air breather. How much difference in thickness of the spacer? 1/4 -1/2 inch should make much difference.

automanpaul

Hello: Thanks for the reply. I put the air cleaner on and checked today and the hood dose close without hiting anything. The spacer is like 1/4 inch thick fiber composit material. I think when you raise the carburetor up it creates an increase in the speed of the air flow into the manafold actually! More air into the engine usually means more power! I doubt however it's anything noticeable, but I really liked the quality of this gasket over any I've found as it even had hard plastic grommits for the carburetor studs to pass through when fastening it down on the intake manifold! Just waiting for the Eastwood exhause hi heat paint to arrive to install the exhaust manifolds to complete the job.
Thanks.