Race ported is there any real difference? After I sell the short block I will have no money in my 317 heads and still have some extra $$$.
Mike Duke has my 317 heads and said they will flow no problem. Said they are not as good as another set (pretty sure he was talking about the 243's or something) because the exhaust port is smaller but said its just going to be a little more work on his part.
Full race port with his competition valve job.
Mike Duke has my 317 heads and said they will flow no problem. Said they are not as good as another set (pretty sure he was talking about the 243's or something) because the exhaust port is smaller but said its just going to be a little more work on his part.
Full race port with his competition valve job.
