C41Xracer
02-05-2011, 03:31 PM
i have a carb question, my hybrid came with an 02 crf470. obviously thers a +3mm stroker crank, cylinder works stock cylinder with 12.5 comp.,GB motorsports ported and decked head with +1mm intake and exhaust valves and a stage 2 hot cam. Right now there is no exhaust and the carb is stock. Do you think the performance gain is worth it to bore the stock carb and what size?