HOT running mopar 360LA

Ok guys. I feel I need to get all my info corrected here so I need to start from scratch and write it all down.

The EFI system I am using is Megasquirt. My air fuel is around 14.2-14.8:1 normal driving. At the dunes I was seeing 9:1, 12:1, as I have not really tuned it in with the new cam. Never ran lean as I like to run more rich to be sure to keep the engine happy.

The ambient temps were 80-low 90.

Now I took my pump off and its a mopar performance 8 blade with a cavitation plate.

The crank pulley has 4 grooves, the 2 nearest the engine are bigger then the outter 2 towards the radiator. My stock alt. had a pulley with 2 grooves as well. So to me it seems I have an A/C pulley.

I took the pulley and put it against the crank pulley and the water pump pulley is a bit smaller, indicating it spins faster.

Now I welded a plate to the 6 blade and it seem to hit the timing cover. Also the bottom most bolt stripped :( So I have to take it all apart tomorrow, i'll grind the plate off and just leave it as is.

perhaps I'm over spinning the 8 blade over 4k causing cavitation.

Sorry for the miss info guys. I'm just really flustered with this issue and have been chasing it for years upon years. I just don't know what to do.

I like to jump to conclusions in hopes it fixes things. But tomorrow I'm just going to take a step back and go slow. I'm not in a rush to get this thing going. But if this pump does not fix it, motor is coming out.