I have an 82 CJ7 with a 304 V8, 3 speed auto, and D300 T-case in it (the drivetrain came out of a 72 Commando). The motor has the heads off a 360 and is mildly built. This is the problem though...

When taking off from a dead stop is bogs really bad, like the carb is flooding or something and at times just stalls. Once you get moving you can nail it and it will respond with LOTS of power. Odd enough, it idles just fine. In park, you can give it gas and it will not flood or bog at all, its only when its under a load...even a small load. Any ideas what could be causing this?

Heres some more spec's on the motor:

304 block w/360 heads
Edelbrock intake manifold
Holly Truck Avenger 630 carb
MSD electronic Off-Road ignition and distributor
MSD plug wires
new plugs
headers and magnaflow muffers
no cats

are the secondaries opening up too soon? what kinda of cam is in it? did it do it before the new carb? are you sure it's flooding might be a vacum leak? do you want me to see if the autoshop teacher at Huntington Beach High school can look at it for you? or do you want me to come out there and help you guys out?

if your in park and try to power brake it does it stall? what do the new plugs look like? did you cross any sparkplug wires?

so did you fix this thing?

It's one of two things.

1. Secondaries opening up too soon. Not having enough spring, you're going to be lean starving the engine to where it dies. What secondary spring are you running?

2. Accelerator pump is either pumping too much, not enough or isn't working right. Climb on top (with the engine NOT running), look down into the primaries while you quickly open the throttle to WOT. Is there a visible "squirt" of gas? If not, you're going to bog and die. If so, you may be squirting too much or not enough in.


My guess is that with lots of power hitting it while running, you've got too light of a spring for the secondary (power improves as RPMs increase in that case) or you're squirting too much gas from the accelerator pump (which would bog an engine under load at low RPMs but not so much at higher) or both.

Go over to holley's site and download the manual for the carb if you don't have it. Then look at the secondary spring. If that's too light, step it up and try it. If it's not, check the accelerator pump adjustments.

I live in riverside and have a CJ5 witha amc 401 in it and have hade lots of carb problums cal if you would like sum help wes 951 275-0074