you need the katech valley cover and non-DOD lifters. then whatever cam you want installed, with DOD disabled in the tune.

 

I'd like to see more data on the fuel pump lobes. How aggressive they can be. Is that the only difference between these engines and say whats in the LT4? The LT4 runs nearly 2900 PSI while the regular motors are running closer to 2100. That said... can the standard fuel system withstand that pressure increase?

 

They only go up to 30% right now but honestly you got some room to play as they are 120lb injectors and you could swap injectors with 6.2 or just run meth and be good up to 600 hp.

 

this is incorrect. go to comps website. many different lobes.