Recommendations for low pressure electric fuel pump to feed 180hp?

As part of building our lemons Citroen SM, I got a facet fuel pump that I thought would be ok. Turns out I was wrong, as I was reading the optimistic free flow fuel GPH as realistic...turns out it isn't. I need a fairly small electric fuel pump that will flow enough to support a 180hp (on a good day, who knows what it is now, but still) engine, and not be more than 4psi of pressure. There seem to be lots of choices, but as I screwed this up last time, I'm looking for some specific recommendations. There is probably some easy button that I don't know about as I have never really dealt with any carburetor that wasn't an MG, so my knowledge here is limited. If the input and output were either 5/16" or 1/8 NPT that would be even better, as that is how the car is currently plumbed.

Thanks

My 84 Mercury Marquis has both a high qnd low pressure fuel pumps but only has 120hp with the 3.8 with a throttle body injection (or CFI as ford calls it). Check the V8 LTD LX power rating as Id suspect it would be clise to 180hp. It should have the dual pumps too.

Try a GM TBI pump (not TPI), they are usually limited to 13-14 stock for the V8 applications but you can use an external regulator to get it down to 4. It is an in-tank pump so that may pose a problem, also i'm not sure about HP supported but they used them on 305/350/454 ci V8's so 180 shouldn't be an issue.

Ebay

Regular fuel injection pump and a regulator.

You aren't apart of the group that was at Kershaw are you?

We were at the lemons race at CMP last month, but didn't have the Citroen, we had our Civic, TR7 and 300E.

Holley Red pump http://www.amazon.com/Holley-12-801-1-Electric-Fuel-Pump/dp/B00029JC5S

I have an electric holly fuel pump (for carburetor) in my garage I pulled off an old project car. $30 shipped and it is yours.

In reply to Sonic:

Yea! We have the fiat 128 that you helped with!

For the OP, most NA motors have a BSFC of around 0.7, which means an engine producing 180 hp needs 0.7 * 180 = 126 pounds of fuel per hour, or roughly 2 pounds per minute. Gas is about 6 lbs/gal, so you need a flow rate of 0.3 gallons per minute at rated pressure.