I've had mine mounted already and tried running it,making the cutout in the firewall wasnt a big deal,I think I'm just going to use a perry pump.I've also got a saito 1.80 in my H9 taylorcraft and the tank/carb location is almost identical.The 1.80 in the taylorcraft was bought used and had a perry pump already installed,I've never had any problems with this setup so I'm just going to do the same with the ultimate.How did your airplanes fly with this combo?I'm thinking it should be more then enough power,am I right?Thanks again for all the tips.