EFi Fuel pump, in-tank or external?

[The T-man]

I'm putting together my sbc, around 500HP in my 2nd gen
I was going carb, but found a nice deal on a TPiS Miniram setup
so, of course I just replaced my fuel tank 2 weeks before finding the FI setup and I'd rather not replace the brand new tank already installed.

is a external electric pump sufficient (A1000 or equivelant) or internal the better way to go?
I don't want any issues with fuel starvation, as I am setting up the car as a corner carver.

Do you "need" to sump the tank, or just get a new tank and be done with it?

Is there a easy swap for internal pump, if so link please.
and as far as lines, can I use the factory hard lines for feed/return? or run all AN / braided?

Thanks in advance for the advice, I'm hoping you guys that have went thru this will save me some time and $

[The T-man]

Well, imagine that....2 posts undermine
http://www.ls1tech.com/forums/conver...e-tri-5-a.html

[86Cutlass383SR]

I can add my 2 pennies worth of experience on fuel lines and EFI.

I had an 84 Cutlass that I converted from the 3.8 V6 to mild carbed 350. Used stock fuel lines no problem. I then built a mild 383 TPI. I ran a new 3/8 main and used the old 5/16 line as my return. Remember, this same line was used as the main inlet for both V6 & V8 carb setups. After the TPI swap I couldn't get my fuel pressure under 100 # and that was using a 255 in-tank pump. Long story short, my old 5/16 return was so clogged that it wasn't letting any fuel return to the tank. Ran a new 5/16 return line and fuel press returned to a normal 45 #.

Moral of the story...stock type steel lines are fine but it may be worth you time to replace them with new lines. I just used brake lines from the local auto parts store.

[JRouche]

is a external electric pump sufficient (A1000 or equivelant) or internal the better way to go?
I don't want any issues with fuel starvation, as I am setting up the car as a corner carver.

Do you "need" to sump the tank, or just get a new tank and be done with it?

and as far as lines, can I use the factory hard lines for feed/return? or run all AN / braided?

My 62 nova had a crappy tank to begin with so on the cheap I replaced it with a fully baffled Triangle Engineering aluminum cell (dont know if they even are around anymore, that was 1996). Its a 20 gal tank with a small sump at the rear. It was already ported with two stubs so I ran the pick-up off one and the return in the other. Still waiting to see if thats a problem due to cavitation with the returning fuel.

I ran the fuel line (flex) from the sump to a filter then to the pump then right into another filter (same filters) and out to the rails. The filters and pump are below the tank, so they are always under a certain amount of head pressure, depends on how full the tank is. But they are always "under" fuel.

Its a pain though. A 20 gal tank isnt small, and I totally enclosed it in 16ga steel after hanging it to keep it out of harms way. So I have this huge tank hanging below the rails.

Its not pretty. Its solid, the pump and filters (fram filters) are also enclosed in the sheetmetal, no worries about rocks or crap hitting the works.

But my point is the pump needs to be below the tank, not by much, but they blow better than they suck. And I can still gain access through a access panel I made in the trunk. Its clean looking, and solid for road debris. JR