i sent my pcm in to zzp today. im confused because i plan on running a 3.1 pully they said i might be pushing it yet they say you can run 12's with these on race fuel 2.8 pully etc etc
im running 60# injectors i have a highflow 255lph fuel pump and all the supporting mods..
tec should i just stick with the 3.4 for now ya think?