rob90gt- The Edelbrock Performer RPM package is great. I have the cam/lifter kit, intake, carb, and timing chain. I run the stock 351W heads though. It still runs great without the RPM heads, but you can tell that they are holding you back. The RPM range is supposed to be 1500-6500. I can tach mine up to about 1500 in first gear and romp on it and squeel my tires, they usually don't bust loose, but they squeel. But you can tell in the upper RPMs that the stock heads suck. Once you hit 5000 RPM you can feel a very slight drop off, but then it drops off a bit more at 5500. I shift at 5500 RPM and about 55-60 mph, (3:1 gears suck), into 2nd and 5000 into 3rd. The 1-2 shift feels awesome with the C4. It really kicks hard. I don't think anyone put a shift kit in my car before I got it, but I'm not positive. It shifts really quick and I like it a lot. I'd rather have a TopLoader though. With some 3.89s. But a C4 with 3.70s will be fine. I should run low 14s--14.2-14.4 once I get my 3.70s. If I got those RPM heads, it would take about a second off my ET. Oh man, I can't wait till I get some $$$.
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'69 Coupe with 351W
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Edelbrock RPM intake, Edelbrock RPM cam, Edelbrock 750 cfm carb, Edelbrock lifters, Edelbrock double roller timing chain, Edelbrock valve springs, Accel coil, Moroso Blue-Max wires, Hedman headers, 2 1/2" pipe, glasspacks, Flex fan, Lakewood traction bars, C4, 3:1 gears, 290hp-stock heads
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