Hello, Put a 5.3 in my 71. It is a 2001 motor. I put a custom stainless fuel tank in the back. Planned on a external pump. I thought of inside the tank, but decided on the outside. Question #1 Can I eliminate the vapor line off the engine? #2 Is there a stock pump I can use from the wrecking yard to mount on the outside of the tank? #3 What pressure do i need? What aftermarket pump would be the best on a tight budget? Thanks for reading my post. Alan