They sound like junk to me.
You will spend 9-1200 bucks making them worth a crap, then you will need to change your pistons to run them, dont waste yor time and money.
look around at edelbrock or kaufmann racing or somehwre for aluminum heads with a close to correct chamber size and shape.
Or get some later model ones in decent shape and do some port work. your still going to spend a grand anyhow, 2k for edelbrock heads isnt so crazy.
Being that your block probably isnt zero decked, its probably best to just get some 73-79 heads as was suggested and use them.
Fact is stranger than Fiction
Last edited by LATECH; 11-17-2012 at 03:19 PM.