Just reporting what happend on mine Mike....I think part of the problem here is that folks put a cam in, and they have nothing but seat of the pants data with which to judge the change. The E/B's in stockers 'come on the cam' around 3500 and they feel so much better at higher rpms -- I believe it's not because they're so much better than stock; but rather because they're so weak down low that it FEELS really strong once you get out of that rpm range. There are LOTS of guys running from low to high 12's with the stock cam naturally aspirated. There's lots of performance potential to be had with it without sacrificing any bottom end -- and I simply don't think advancing the cam timing on those two cams is gonna reap the kind of rewards we saw when we actually optimized the cam for the results we were trying to achieve.
If you're gonna race it and all you care about is 4000-6000 rpm -- cam it up. But for the street -- take a good hard look at how it behaves from IDLE TO 3000 - that's where most of your time is spent. It's hard to beat the stock cam in that range.
If you're gonna race it and all you care about is 4000-6000 rpm -- cam it up. But for the street -- take a good hard look at how it behaves from IDLE TO 3000 - that's where most of your time is spent. It's hard to beat the stock cam in that range.