Originally Posted by CNC BLOCKS NE
Its hard for the Gen 1 engine to compete with the LS based engine, With there 12 degree intake valve, Large journal cam, high rocker ratio from the factory. Raise cam tunnel.
23 degree heads don't stand much of a chance!!
On the LS engines I have never cared for the Y-block design as that went out in the early 70's
worlds genI block that takes ls top end, kills both