[fiveohpatrol]

those power heads are a waste of money for what you get outta them.

I ported my heads myself. It was the first time I had ever even used a die grinder, so I had NO experience doing it. I just had a friend show me how to do the 1st intake and 1st exhaust port, and I did the rest of them. Took a while, but it was WELL worth it.
Just use a quality grinder, compressor and carbide bits and you'll be all set.

good luck with it