Quote Originally Posted by DennyW
The big block guys will be along. I would cut my pressure to 6 max. Sounds like you are forcing the floats off there seat, and getting extra fuel in the intake. Yes, this would cause it to act up, and flood. And, yes, if the pressure is above that 6 psi, wait until it drops to 6 before starting. Sounds like maybe a fuel line heat problem causing expansion of the fuel, increasing pressure.

Welcome to the forum.
Denny has got this one.
I think you are pushing fuel past the needle and seat.