#4448308 heads have any potential?

And in Mopers post is what I normally suggest due to exactly what he said. In general, the price of the work (W/bowl porting) is very well worth it and provides about the best bang for the buck.

But, someone is allways looking for a cheaper way out, which is possible, but probably not worth the expense in the long run.

Do it right and do it once or pay twice for what should have been done the first time.