318 LA hp and torque question

Not from what I have read not what I know. I have read other head porters claim 240+ cfm. Check with a head porter that has actually done the work and flow tested them.

Edit………

I just remembered something from the past. In the MP catolog, they offered a ported 302 head. It had 1.88-1.60 (360) valves and came fully ported. (And knowing MP, you could have taken further)

FWIW, They tested the head against a 360 head and produced 55 more HP.