Originally posted by Blue89SC
Can i port the stock manifolds while they are on the car. What exactly is the most restrictive part on the manifolds. Any help would be greatly appreciated.
Thanks,
Anthony
Originally posted by jwillie
You should be able to open up the collectors by using a series of three reamers with about 1/8" diameter difference between them. You would need either a low speed electric or pneumatic tool to drive the reamers. I realize that this would be quite expensive, but should yield professional results without removing the manifolds from the engine. Does anyone know what the final diameter should be?
jwillie