[CamaroCracka]

Well mileage will suffer. I get 15+ on the highway, but maybe 12 in traffic with a 416 and a .612/.602 230/236 115LSA grind in the convertible. I do have a hard time staying out of the throttle, but don't kid yourself, if you have a lumpy cam you will most likely use it. Otherwise, why did you even want it.

However, you don't have to go with an all out cam to improve power and be happy with it. Choose something with a reasonable LSA and it will be happy with boost when the time comes, and you won't have to take the front end of the engine apart. Plus, if you are boosting a stock bottom end, how much horsepower do you intend to make anyway. Is a stage 4 cam really going to be that big a difference over a stage 2 or 3 at under 15# of boost.

If you do put a cam in it, put LT headers in closely after and you will really see the gains. Headers improve mileage, so you will get a bit back on that. For reference, the convertible has 1 7/8 LTs.

You will need a tune with a new cam and be sure to tell the tuner to turn off the converter errors so if you put on LTs or go catless, you won't have to worry about a retune.

Oh ya, the oil pump you want is the Melling 10295.