Speaking of heads a friend of mine ran 2 different 408 SBMs last week on the dyno ( on the same day) The street engine did around 520hp and the race engine did 630hp...both used the pro-maxx cnc heads
I like hearing that. I have a set of lightly used ProMaxx 171's set aside, which supposedly go [email protected]. Those CNC 185 Shockers are advertised to go [email protected]. The TF "should" outpace the Shockers. Do you happen to have any more detail on the street motor, particularly the cam?
Edit to add... Looks like they dropped the price on the ProMaxx about $300 a set too
