Overheating on run stand

Thanks Casey, I'd have to chk my build notes for compression, but pretty close to 10.5-1. I figured my compression played a part in it.
Head gaskets are correct.
My cheap *** should've bought a box fan.
I'm pretty confident the major contributor as Rusty and others mentioned was too little timing. Play time is Tuesday.
Wrong head gaskets blocking water flow????


View attachment 1716251519

By the way what compression ratio are you running? 10.5:1?

More compression, more heat and hotter fire.

Aged stock flowing radiator may not be up to task?


☆☆☆☆☆