ips k2 are for a stock motor if your building a motor i would step up go with IPS k10 or KXV.... but with the KXV make sure you have a deep enough valve relief to run 50 vtc.

cams to choose from if you want 300whp
IPS k10
IPS KXV
Drag Cartel Spec IV
Jeremy Allen Custom Grind



here a picture of the IPS manifold