Electric Fuel Pump?
Make your decision carefully based on facts not opinions
Holley Blue will flow at 72 GPH at 7# pressure
Holley blue regulator will only flow at 60 GPH at 7#
Carter HV Mechanical box stock will flow at 85-90 GPH at 6#
Carter HV Mechanical re-worked by FBO willl flow at about 110-115 GPH
12 second car needs a pump that can supply 1 gallon of fuel in 35 seconds
11 second car 30 seconds
10 second car in 25 seconds....etc
Do the math.
Watch your choice of filters, an HPG 1 for example will only flow at about 70 Gallons per hour free flow to an electric pump, a mechnical will force it to flow at about 100.
A cheap azz inline Parts store filter with flow about 50 GPH at 6#'s.
5/16 lines will support about 300HP 3/8 lines will support about 400 etc.
If you not sure have an expert design you an adaquate fuel system for you application.
http://www.4secondsflat.com/Barry_Grant_Fuel_System Specials.html
Do it right and do it once