Need help with 350F

I have petcock to carb clearance issues to say the least...any ideas?

Rear of tank as it sits...

That's a tough one. And that 350F petcock design is unique, I think -- or at least not used for much else. Wonder if there is a way to remove the bowl and just make a flat cap and maybe grind back the fuel route a little, then run an inline filter. Might get you 1/2". Or fab something up..

I will take the bowl off and see what kind of clearance it gives me.