bought this to fix fuel drain back problem

I think there are several people who are:

A. Irritated they didn't try this idea first because the experts SAID it wouldn't work, or

B. Irritated that they tried other things that didn't work and cost more than $9 or

C. Not irritated but also not about to congratulate somebody else.

Which is it?

BTW, I also have fuel drainback problems on my stock '74 318, so I may be going your route, Good job!