FLYNAVY30

iTrader: (1)

Im just finishing the build of my junk yard LS1 with a cam upgrade and some cleaned up 243 heads. Its going in my 1972 daily driver C20 suburban and Im starting to look at the fuel system. The truck has a brand new factory tank and currently has the factory mechanical pump on the stock 402 big block. Obviously with the LS swap, Im going to have to go with an electrical pump....any recommendations? Also, any input on fuel line size, filter, regulator would be much appreciated. Im going for simple, effective, and somewhat budget friendly.

bears416

I say either a walbro 255 or a inline holley black, both shud b good to 600hp or more, id highly suggest a return style holley regulator and use nothing but 3/8 fuel line

JRracing

iTrader: (35)

A holley hp125 and -8 braided line for a carb setup with a holley regulator.

bears416

Thatd be good but 8an starts gettin expensive id think its overkill for him idk though

ZONES89RS

iTrader: (25)

I would opt for the aeromotive AEI-11209.

Will mount in line and is internal regulated. Good for 600 hp. If you have 3/8 line, use that. Nothing smaller.

speedtigger

iTrader: (16)

3/8 steel fuel line is all you need. You can build it out of sticks of 3/8 steel fuel line from the auto parts store and connect it all up with brass flare fittings. Just like the factory used to do. For a fuel pump, a lot of guys are finding reliability with Aeromotive S/S pump. However, I would be tempted to try the new Holley HP pump. It is a gerotor design and should be reliable if built right and I have heard people say it is quieter than the vane style pumps.

As for the a fuel pressure regulator, you just can't beat the value of the old Holley 803 regulators.

FLYNAVY30

iTrader: (1)

awesome, thanks for the input

Pop N Wood

iTrader: (1)

For a near stock LS motor you don't need that much pump. Keep it down around 100 gph or less. I'm running a stock LS2 with a 750 DP, so same heads, maybe more HP. I have a Mallory 140 gph pump with 3/8 line and a return style regulator and it is way too much pump. All a pump that size does is make more noise while costing more.

Carter makes a good pump. In all honestly I would go with a Summit brand pump in the 90-100 gph range.

Here is a good link about setting up a fuel system. From what I have seen people actually run the link tends to oversize what is needed. So if you satisfy what this link is saying you will have more than enough fuel system.

http://www.centuryperformance.com/fo...ish-Tendencies