Got a healthy carbed vortec 350 motor in an 89 rs, that did have a 305 TBI in it..We are using the stock fuel pump, and delivery system up to the firewall, it then goes into a regulator with return...FP at idle is between 7, and 8 pounds...It seems we are running out of fuel in hi gear at the big end of the track...Does anyone know what the flow rate is for the stock setup, and can someone suggest a good drop in replacement??? I have done a bit of searching, but no luck...Thanks...Tom