Draggline53
Well-Known Member
- Messages
- 378
- Location
- macomb mi
Fellas I'm to install a OBR 7.5hp full mod zenoah 30.5cc 4-bolt ehgine. What kind of performance should I expect as oppose to a regular pro stock zenaoh 4-bolt engine? Also what walbro carb should I install 990 or 813 and why? Last but not least what tuned pipe should I get jetpro or cpi? You guys have been great and informative hope to hear your expert advice and suggestions. happy new year to everyone out there.