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Originally Posted by Jeffvette
The car loses significant power in the top end unless you have headers and porting. Only then will you acheive that flat power band at the top.
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Huh. I never dyno'd mine stock. The most-stock was with just a ported top end and stock manifolds/exhaust. It dropped off after about 6,200 rpm, but not very badly. I just figured stock would drop off more, but probably not tons more. Then again, I did find myself hitting the rev limiter a lot when I first put the ported top end on because it kept pulling vs dropping off.
Still, on the 1-2 shift (at 7,000 in 1st) I think the revs will drop to ~4,700 rpm. So as long as it doesn't drop that bad I'd still think you are better off running it to the limiter.
