Bob,
Just mounted a 3.2 Brisson in mine & Pitts muffler I had a G-62 I thought would be nice but better off with the 3.2 or the Z-40. Good choice you made. Mine is pretty much right on CG. The g-62 is too much engine and weight for the nose. I added a 5/8 ply firewall and glassed over the whole front firewall for added strength. Did you put in a smoke system? I added a TME pump and 36 oz. smoke tank right on the CG. Fits just right. The cowling needed alittle cutting for the two bottom fins on the 3.2 and bosch plug cover. Any bigger engine would have to really do major cutouts and lose the scale appearance of cowling. I ran two rudder servos and two split elevator servos. Ran 4 aileron servos. I am very pleased with the kit. Best ARF I have seen to date. I guess I have the newer version with the aluminum gear and spinner, also the update sheet with newer wheels pant blocks and control horns. The covering and paint are excellent. I don't know how they could sell this ARF for only $ 399..?????
Can't wait to test fly ....maybe 1 more week.
Good Luck with Yours,
Robert