PTV check without pulling heads...
ls1
Ported 243's milled to 59cc
stock gaskets
cam: comp grind 13047r / 13051r HR113+2
lift 610/ 627
dur@.50 235/ 243
ICL 110
If im wasting my time lmk but wouldn't take much to swap the cam, pulling heads in the car, not so much. Cheers!





