Bigger carb maybe.

[eibargum]

Any one know whats the maximum you can bore a 28mm phbh out to, Ta.

[soosh]

Not sure,why would you want to?

[eibargum]

Want to put a bigger carb on our lass,s muggy, but its only a stopgap till i put her RB22 on at the end of the summer, just an idea, thought i,d have a go. People used to bore carbs out all the time, before we had more money than sense, regards.