I've just make a blank for one of the fuel tanks of my Westbury Hunter out of blue foam. I plan on molding my own tanks (or at least the custom shaped ones).

To maximize the volume, I've made it to fit between the intake ducting. I have a question regarding it's shape though. I am worried that the clunk will be constrained to move only in the very tapered back section and not work as well as it should. Does anyone think this will be a problem or am I worrying about nothing.

I do have the space to fit two of these tanks, plus a cylindrical tank as well. Theoretically I could have about 140oz of fuel if I use all three tanks. Given the large capacity I could shorten the taper on the tanks to give more freedom of movement to the clunk.

Thanks

Paul