The manual states the engine's propeller back plate should be 114 mm from the firewall.

Also the stock mount meed to be offset slightly for the propshaft to be inline with the fuselage axis.

So, center the prop shaft so it will come out the cowl center , and make sure the face of the engine's prop backplate clears the cowl...114mm.

Mine looks great and fly even better. OS .46 AX and Macs pipe will make your jaw drop.


Mike