hi

i just purchased a new but older .91 engine has only 5 tanks ran through it all on a test stand. engine is going in a yellow aircraft edge 540 60 size. i have a few question i need help with.

- what is a good prop for this engine can it handle a 15x4w

- it has the butterfly type carb is this easy to tune any tricks i should know (have other mvvs engines with newer type carb very easy to tune).

- came with the black square dustbin muffler is this any good or should i look at the mini tuned pipe or another type pitts muffler.

thanks for your help

buddy