[vin63]

Originally Posted by C10Slim

So I am thinking about buying one of the CPP aluminum bed mount tank kits. Comes with sending unit and all of that.

http://cgi.ebay.com/ebaymotors/1963-...Q5fAccessories

Have some questions:

• Whats the difference in a 30 and 90ohm sending unit? Which do I need?
  The stock gauges are 0-30 ohm and most aftermarket gauges for GM applications work on a 0-90 ohm spec. So, it depends on the gauge you will be using.
  
• Do you just run the fuel line off the nipple on the sending unit?
  For a mechanical fuel pump application, this works fine.
  
• This tank has 2 an type fitting near the bottom of the tank do I use those instead?
  The NPT bungs at the bottom of the tank are generally for electric fuel pump applications - electric fuel pumps are designed to push a column of fuel rather than pull fuel from the tank.
  
• Mechanical pump or do I need an electric?
  This is a personal preference, but if your mechanical pump is working fine, then no need to change. Just plug the bottom bungs in the tank.
  
• What are you guys using for fuel line? Hard lines? Braided hose?
  I use both in many instances - a flex line from the tank and to and from the fuel pump. I use a hardline for the span along the chassis.

Basically looking for someone to help me design a fuel system that will feed a 383 SB.

Answers/Thoughts/Ideas?

Thanks!

Good luck...sounds like a great project.