[Stan Weiss]

Originally Posted by General Z

Update: I changed to the Performer RPM intake. I replaced the diaphragm, cork gasket and went to the next to lightest spring on the vacuum secondary. I finally took it for a ride, and there's a noticeable difference. The guys that said the intake was choking it seem to be right. I didn't end up doing step by step testing, just did it all at once. I haven't driven it yet with the G-tech meter set up to see any quarter mile improvement. The difference is big enough that I'm doubting I'll change cams when I pull the engine to do the rear main seal. This 2802 is broken in and doing fine.

I'll still probably lower my shift point from 5000, per the suggestions above and try that.

Thanks everyone for all the support and suggestions.

I would be very interested in what your tests show for performance shifting at 5000 RPM and then trying 4800 RPM. Doing some simulations using information from Dennis' dyno sheets I find 4800 RPM should be 1 tenth slower than 5000 RPM.

Stan