yep thats it, i was close

 

Lift is not as important as duration when it comes to big lift cams!!!
.640 lift ain't no deal on a 233 intake duration.

Think about how the engine works... you only have piston to valve clearance issues when the piston is at top dead center.... you shouldn't have any issues running the TRAK cam on stock heads.

Only reason I could think of to avoid the TRAK cam is if you want to avoid the 921 springs ans shim setup.

 

MS3 237/242 on a 113. I forget the lift but right around 600 I beleive.

Thats what Im going with and its NASTY on spray.


-Zee

 

Thanks for the specs on the 5X3 it was the only one I didn't have.

Rick