wrobinson
Well-known member
- Joined
- Oct 28, 2016
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- 102
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- Location
- USA
- My Car
- My 13 year old wants to build a 1971-73 Mach 1 Mustang for his first car. We have found a Grabber Blue with white interior base model 1971 Mach 1 to start on.
I have an observation I need some help with. I have been reading a few different articles about intake manifold performance such as the Engine Masters "Ford Cleveland Intake Shootout". The Performer RPM Air Gap really made incredible power, 449hp and 411tq. The 4V 351 responded tremendously well to the smaller intake port. The RPM Air Gap has a port size of 1.42" x 2.04" which is not much bigger than the Eddy Performer 2750 351C 2V intake which has a port size of 1.30" X 1.86". Can the Performer 2750 be used on 4V heads? I have read that the Performer 2665 4V intake is a turd which has a port size of 1.88" X 2.15. Has anyone used a Performer 2750 on 4V heads?
The RPM Air Gap uses a specific gasket, Edelbrock # 7265, which have port sizes of 1.52" X 2.16". I was thinking maybe this gasket could be used for the Performer 2750 also instead of the Felpro # 1240 which has a port size of 1.50" X 2.12".
The RPM Air Gap uses a specific gasket, Edelbrock # 7265, which have port sizes of 1.52" X 2.16". I was thinking maybe this gasket could be used for the Performer 2750 also instead of the Felpro # 1240 which has a port size of 1.50" X 2.12".