E420421 - Erson High-Flow Hydraulic Flat Tappet Camshafts

The duration to MP grinds are duration times .850 for duration @ .050.
Actuall timing events I do not know.

IMO, you would be better off with a split duration cam in 80+% of all motor builds. It is not a mandotory thing, just a bennifit.
The exhaust can alllmost allways use some help in breathing.