318 head porting for the average joe

dirty white boy said
what size valves you working with???

Atm, 1.78/1.50

The exhaust valve in the pic is a stock 360 1.60 turned down to 1.50 for testing. The face is is wide enough to be cut and land right on the stock 1.50 seat in the head.

I've done 1.88's too.