I just purchased a used 91-AC to try out since the 110's are so hard to come by. I am going to put it in my 60-size GP 300S, which has been flying on a Saito 100.

Some of the reference docs I've seen recommend a Tetra or other high-strength fuel tank. But fuel tank space in my P-61 will be be very limited, and I'd like to be able to select a tank with the best dimensions to maximize capacity.

So do major name-brand tanks (Sullivan, Du-Bro, etc.) handle the pressure OK?