I have had my 'Home made flow bench" for a couple of years now.
And you learn a lot chasing your tail for cfm and air speed.
I have got in trouble with my wife, chasing air speed tell 5 in the morning, too many time, to count :toothy10:
It has become an addiction!
AND I STILL KNOW VARY LITTLE!
340plot, is this a 318(us the 302's) or 340? us the 360 heads.
Which ever one you us, clean up the in perfection in the casting(Don't port them!) and have a 3 or 4 angle valve job.(this is the simples, cheapest,and fastest cfm improvement for either head.)
And you will be happy with them.
340plotWere do you live?
Somthing tells me, them cast iron head, would kill me in shipping charges.