At the end if the day this head is going to be way to small for a 4 inch crank motor, just like an eddie is. I had a pretty cookie cutter 10.70ish 3350 pound flat tappet eddie motor and it weezed looking for the stripe about 150 feet out.
Even W2/W5 stuff is barely adequate.
I dont want to get a license again and all that entails, so i look at these heads as probably really nice castings that i can get to run in the bottom 10’s with and expect to be trouble free doing so.
