300ex big bore

[Alias99]

Hey i know its seems that a lot of people run the 330 kit but are the 350 and 390 kits just as good? What is the best kit? I dont want something im gunna have to repair cinstantly down the rode. Thx

[dork]

the 330 kit is popular because you don't have to bore the cases for the sleeve and you get a good power increase. the 380+ kits(bore only) are reliable as long as you use a stronger rod.