Purple Shaft vs XE Comp Cam

71duster06 said

Im hoping to make my car a bit more enjoyable on the street hence going 70mph at 4 grand. 3.23's will help that out but at the same time Im trying to see what I need to do to keep the performance up as well. Sure 3.91's are fun but they are limiting on what you can do other than the track.

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what he's saying though is that its alot easier to just change to a taller tire if you can as opposed to going through a pig swap in the rear end...theres some tire size, rear gear, and tranny gear ratio calculators on the internet...try and find one and play around with them...a taller tire will also give you a bigger footprint, so even though it will reduce the "oomph" of the 3.91's, you will get slightly more traction