How do you pressurize the fuel tank without the muffler pressure tap? I'm currently working on a Zero from CMPro and will use a 4Stoke. I want it to have a nice growl too.

But I think the Giles will really be fun when the CG is closer to the correct location. I think mine is a little nose heavy too but not much. I have to hold a bit of down pressure only when flying inverted. Thats probably normal but I'm going to experiment by slowly moveing it it back a bit at a time.