Fuel pump help
I have the stock fuel pump in a 3 year old 350 GM crate motor with headers, 600 cfm carb and 9" x 3" K & N air cleaner. The car seems to breath real well and runs good, but it can seem slow to respond or sluggish at times. I just gave the car a tune-up; plugs, wires, distributor, fuel filter, thermastat, coolent change, oil and filter so I am guessing it's from lack of fuel, but I am just guessing. Would a moderate performance street fuel pump with pumping capacity of 110 gph at 6-7 psi make any significant difference? BTW, most of the fuel pumps in this catagory say no pressure regulator is required, is that really true? What is the psi on a stock fuel pump?
Lastly, any thoughts on making a change to a 750cfm carb form this engine?
Thanks in advance-