Yeah, what can B done to up grade? Are the parts adapted or do folks machine the engine to accept the upgrades (modern/peppy dizzy, carb, oil pump, etc)?Econoline":3oovagh0 said:Unfortunately with a C1 block you've most likely got the 1/4" oil pump drive, that's how my 170 is. Kind of marry's you to the darn LoM system. I think is a work around, not sure what all it entales or if it's worth the effort.