how much power can a walbro 255 support with a carb

[BaggedBurban305]

in my 95 i run a intank walbro 255,stock fuel line,stock return line,stock fuel filter,and a aeromotive #13301 regulator.my holley 750hp idles around 5-6psi and climbs to about 14-15psi of fuel under boost.how much power could the pump support ? i often see people upgrading fuel lines filter and getting a a1000 pump but it seems like overkill for 400 - 500hp.

[cancritter]

it'll be fine for what you have...would look to enlargeing lines if you havent already...keep lines clear of exaust or heat may perculate the gas in the lines