i just swapped a 350 out of an 89 chevy pick up into my 87 z28. the block i have doesnt have a spot for a mech. fuel pump, so i baught a holley red electric pump. ive got a couple questions about instalation and lines. ive never done this kind of swap before so i feel kind of stupid asking these questions i did a search and it only answered one of my questions, so here goes:

1. was there an in-tank pump in it? in my search i couldnt quite understand if there was or there wasnt. if so, do i need to remove this to use my new holley?

2. one of my fuel lines is hitting my headers. i plan on unbolting the brackets and trying to move it around the header, if i cant get it to where i feel comfortable, and if i cant im going to re-run my fuel lines to where i do feel comfortable with it. so which side do you guys run your fuel lines up?

3. with the new pump, i dont need the return line. so can i just get rid of this to start with?

i feel really stupid asking these questions knowing you guys have probably heard this before, but my search didnt turn up anything useful. thanks in advance for the help, and if you guys need pics or anything just let me know and i'll see what i can do.


-chuck

 

? # 2;
get it off the exhaust!fire comes to mind,as well as fuel percolation.
re-route the line along the shortest and sturdiest path you can find!with as much clearance as you can get from anything that gets hot!

 

The fuel pump is in the tank.

If you don't take out the pump the Holley RED will have to be strong enough to pull the fuel through the existing pump in the tank.
Remember this tank doesn't have an outlet at the bottom, all fuel lines pass through the sending unit bulkhead at top of tank.

You can remove the return line up to the axle where there's a rubber hose section that connects to the return hard line of the sending unit.

I would suggest first, removing the existing in-tank pump.

Second, Y, or Tee the sending unit supply & return hard lines and connect them to the section of supply line connected to the stock fuel filter.

Third, extending both the inside tank supply & return hard lines with rubber fuel hose with filters on the end to reach the bottom of the tank, one facing to the left, the other to the right to minimize pump cavitation on hard turns when low on fuel.