I have a 13B, 4 port with J bridge and race exhaust porting, Atkins two piece apex seals and all new seals and bearings, also have a 7" Atkins supercharger with a Holley 650 on it. Any guess as of how much power will this thing makes?? It's in na 74 RX-3 with a T2 tranny.

 

300- 350hp. that what i think