Drag strip launch problem

Well first thing I would get that filter before the regulator. And keep your line from regulator to carb as short as possible. This allows the regulator to pickup the most instant signal from the carb. Also IMO your system is on the edge of too small. Your probably spinning that thing around 6000-6500? Anything 5/16 is a red flag!! That goes for the pump fittings also. IMO the reason you don't experience this on the street is the combination of g-force and rpm. I think you momentarily starving for fuel pal.