So I bought a engine because my old cases got trashed last season. Was listed as a 330 PC got it home started taking it apart to replace bearings etc. To get it ready for my next race season, and this is a 370 pv with a 4mil crank. My question is you guys think I should get a bigger carb. Running a kehin 38 pwk with my old engine. I race xc. And alot of trail riding. Also I know how to jet just not sure if 38 is big enough for this engine.