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Original Message
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RE:CJ vs. PI intake |
By Mike McQuesten - 03/22/2001 4:06:41 PM; IP 206.193.0.124 |
I'm sorry to have been vague. I do mean the chamfering out to the size of the gasket. I guess that really isn't port matching, huh? My specific case was that I bought C7AE PI manifold that had been "chamfered out" as you say. I did the required fix to the heat chamber and installed it on to my 428 CJ. It ran well but didn't feel as sharp off throttle/low end. I eventually changed manifolds to an offy dual four w/Edelbrock 500s - looked good but didn't run any better than the previous two. Replaced that set up with a Edelbrock Performer/750 Edelbrock - whoa did that provide tire roasting bottom end. This was before the E-brock Perf. RPM was available. I sold that C7AE PI to a friend who runs it on a '67 Fairlane GTA/428 bracket racer. He's running the 324/500 solid Ford cam and says the manifold works well at the top end which is what he wanted. I know that it seems that "chamfering out" the manifold should do some good but I've been told it doesn't help and can actually hinder. My seat-o-the-pants experience seemed to support this theory. I'd be real interested in hearing what others have to say. |
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