LUVTruck.com

First of all I just want to say thanks for all of the information here on this forum. I started out just doing a head gasket and that lead to a weber 32/34 (craigslist for $75), porting the intake, a Delta cam, new timing chain (plastic on tensioner broke), MSD 6A, and my buddy put a washer spacer in the oil pump to raise the oil pressure.

So this thing runs SO much better. Great power... actually idles... The only problem I have is when I get on it, it starts choking out by the middle of third gear. If I take it easy its fine.

I have a fuel pressure regulator set at 3.5 PSI. I have a Posi-Flo fuel pump rated at 4-7 psi and 32 gallons per hour.I checked the flow but I only get 10 GPH when I checked it. I think this is too little??

What is the minimum fuel flow I need? I saw some guys were recommending pumps rated at 75 GPH.

Thanks for the help!

Chris

Replace the pump.Acts like it is starving for fuel.

I would try turning the regulator up before I replaced the pump.

I turned the regulator all the way up at 5.5 psi. I measured 14 GPH when I checked the flow. I checked the fuel filter and blew back the fuel line to see if there was an obstruction. It is still cutting out like before.

Is there a fuel filter in the carb? I've never worked on webers before.

Check the carb float level.
Weber recommends 3psi, you might try lowering the regulator pressure, can't hurt.

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'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, rough body, bought new 12/4/78.
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch,more to come.

Dumb question..did you replace both fuel filters?

The only filter I can see is the large one that is under the truck. Where is the second one?

I hope my truck never uses 10 gallons in an hour! I would guess that it is your float or the needle valve on the carb is partially plugged and or sticking. It may also be why it was only 75 bucks.

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1980 4x4

Should be another filter in the engine compartment.At least on my 75 there is.