I didnt know it was a car dyno. cool. If thats the gains you saw from porting i wouldnt complain either:gr_nod:
Ive seen before and after of good known porters on raptors, and without giant valves and big ccs the gains from porting alone ive seen less than 10%. People really do fall for the poring should give me 20+ % alone. One builder claims 4hp with just a standard valve port, and at 64hp you do the math on the percentage. basically 10% is pretty good IMO