rockholt454

Ok i have 2001 z28 a4,the only thing i have done to it is an slp lid,loudmouth catback and 3:73 gear.I had it dyno tuned and it put 312 to the wheels.I would like to get close 400 at the wheels.What cam would be the best for this car to sound really and good and put out power also.And what all do i need to replace along with the cam?

Kraest

There are tons of threads about this very thing.

First of all, a good converter will knock around 4/10s or better off your time and make your car much more fun to drive. I'd go with a 3600 stall to remain streetable.

You also need some longtubes.

It's harder to get dyno numbers out of an automatic, but I always suggest the Futral F-13 due to the power it makes and drivability of it. It usually makes right around 400rwhp on 6-speeds, but alot depends on who tunes it.

You'll also need upgraded springs, retainers, LS2 timing chain, ported oil pump, and hardened pushrods.