I've heard good things about Bob at www.madmaxperformance.com
on the SnoWest forums. According to his price list he'll do a port job
for about $480 USD.
my friend had his done on his f-7,looked terrible,and he went over it cleaned them up and he didn't really notice any gains,so I;m not sure about doing this either.You need to know what real needs to be removed.