[Hillard]

If that's the specs...not liking the 116 lsa. Oh well, the cam was free.

[BruceWilkie]

Originally Posted by Hillard

If that's the specs...not liking the 116 lsa. Oh well, the cam was free.

Lsa isn't as important as where you time the cam. Advance the cam and exhaust opens and closes earlier and leaves less residual charge at end of overlap. Less charge pressure in chamber at start of overlap means charge will begin moving in sooner , as soon as intake charge has greater pressure than pressure in the chamber. Nothing's is going into chamber until chamber pressure is less than intake charge pressure.

Remember that LSA is nothing more than the coincidence of chosen points best used for checking purposes. Many "hot" LS cams have wide LSA and quite a few Pontiac cams had wide LSA... It's the installed timing points that matter.

Have a gut feeling it's going to be happy at 108 ICL NA