I'm in the market for dual walbro pumps and need to know which one to get for my application(procharged 383 700+rwhp). Does the GSS 340 come in a low and high pressure pump? The company I'm buying from offers both. I'm using an Accell AFPR and most likely low impedence injectors(probably 96 lbers)

 

If you plan to run the stock fuel pressure, both pumps will meet your needs. The high pressure pump will maintain the same flow rate at higher fuel pressures.