292/508 question

Moparhead said

The 508 cam is really a kick *** cam behind a 4 speed and 391 or lower gears. We ran a couple 340s and 360s and were in the low low 12s the motors had just around 400-410 hp on dyno and a nice time slip to boot on absolute **** tires not as bad as bias thoe XD. All the same can thoe I had rpm intake my buddy has the m1. 6600 rpm? Yeah i would go with m1 for that high

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And that was exactly what that cam was made for. Not the guy with a 3.55 gear and a dual plane intake. It was meant for guys like me, with a 2.66 first gear, 4.56's in the back, a Strip Dominator and Hooker 5204 headers. I was running low 12's at almost 110 and drove the car every day, every where. It wasn't a pig down low either. But I had the Pistons out the hole .040 to get an honest 10.5:1 on pump gas and I installed it at 104 because I had a timing chain (2 degrees for chain stretch and 2 degrees because I didn't want it to run past about 6800 and make power.

The sweet spot was 3500 but it stated getting mouthy at 4000. By 4500 it was very pissed off and stayed that way until 6800. My gear box math said I was close to my lower RPM on the shift change and if I shifted at 6800 it would fall right back to where it needed to be.

I have no doubt if I had the correct clutch that car would have went 11.60's on the street.

There is nothing wrong with that cam if you use it for what it's for. To me, any lower RPM than fall back RPM from shift is just for cruising. That's what I call bottom end. If you think blowing the tires off at 2000 and looking too cool for school it's not your cam. Now, if you want to put on a smoke show and don't mind spinning the hides at 5000 then it is your cam.

Ultra low speed torque sells magazines. Correctly placed gear splits and camming accordingly is always always quicker and faster.