[UrQ]

In my challenge car we upgraded to the Trickflow topend for the 2012 FFR series, mine was at 329rwhp at the start of the season (on new stock bottom end). So for about 3K you can add 100+ rwhp via trickflow (heads, cam, upper/lower intake, 24lb injectors, 70mm throttle body and MAF to match).

I ran all season w/o any engine issues, pushing 6K RPM most of the time.