Forced induction fuel system

Their is so much poor information it isn't even funny. On a budget, twin Walbro 255 (GL392) work great for anything building over 600HP at the crank. One can be operated via toggle or Hobbs switch. The Aeromotive A1000 pump is also a great option for most builds if budget allows, as it is great flowing for a single pump and has generally good reliability. Don't attempt running your factory mechanical fuel pump, this just sounds absolutely ridiculous. It is intended for 6-7psi, even running low boost pressures it will not be capable of supporting the pressure and flow requirements. A boost referenced regulator is mandatory, why individuals try to 'cheap out' and modify $30 Chinese fuel pressure regulators to regulate fuel pressure under boost for their $5,000 longblock is beyond me. Fuel pressure is critical on forced induction applications. Their are plenty of boost referenced regulators on the second hand market for a fraction of the cost of a new one, please use this option on a budget. As for carburetors, you can purchase used CSU carburetors that are boost referenced for $500 on the used market. 'Hanger 18 mods' on a basic 4150 series 750 Holley work fairly well if you do everything correctly, but always to a point. 8an forward, and 10an return lines should be standard on f/I applications. You can do it right, and inexpensive as well. You just need to do your homework.