cam question

rigger3006 said

i run ported and matched 302s with 1.60 exhaust valves on my 360, it keeps pulling til i back off at 6000, with the 284/484 in a 318 with these heads it would wind up to 7000 no problem. with present cam ,489 lift from bullet racing and previous MP cam i ran comp 901s as per engine shop recommendation.these heads will flow with good velocity, never mind the number crunchers, try things out for yourself and see what happens

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Its fine if you disagree with my opinion, but just to give you a little background (Cliff's note version)....I've said this in a few threads around here...short version is, I've run ported 302's and ported J's on the same motor...the 302's were half a second slower in the 1/4 mile compared to the J's....that's a LOT slower (in case you are not a drag racer).

You rev that thing up to 7k with that small cam.....there is just no reason for that (just saying). Heck, I don't spin my low 10 second small block motor up that high unless I'm running 1/4 mile, and then its only because it has to at the stripe (4.10 gears, 28" tire, do the math) at ~ 129mph, I shift at about 6200rpm (264-268 @0.05 cam).