I just got my swap done, now im having issues, I have to keep the pressure down to around 2 psi or the pressure will spike and flush fuel out of the carb. Im using stock pump in tank and a mallory 3 port fpr. any suggestions that will remady this issue before the car burns up???

correction not holly fpr but the mallory 3 port fpr.

Part # 4309?
That's what you need--
it has a return line.

Holley carb?
Adjust the floats

yes the 4309 and no its a edelbrock 1406

floats full of fuel. should be up and running tomorrow.