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Old 08-31-2006, 06:49 AM
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318 stalling with gas applied, timing???

Hello all

I have my 318 working great in my '77 truck, other than the stalling problem. First, let me tell you guys what i got on it.

msd blaster 2 coil

mopar orange box


true duals with h pipe and cherry bombs

super tall filter, two normal frams stacked ontop of each other.

rebuilt carter bbd carb ( i rebuilt it)

when i try womping it, it will almost instantly stop, but if i go slow on the gas, it will go fine, when i have it about mid throttle, and then i stomp on her fast, it will stutter, then will run to full roar (awesome feedback growl with the cherry bombs ) Ive tried adjusting the accelerator pump, didn't really help much

ive tried adjusting the mixture, if i tried putting it more into it, a carb backfire would happen.

with the backfire, im thinking maybe the timing is a little off, especially since i put the orange box and coil on, maybe i need to retard or advance it a few degrees, since the spark is more powerful now.



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Old 09-02-2006, 02:38 AM
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Hi Jerry

I'm not familiar with the carb you said you had but it sounds like the accelerator pump jet is blocked or the accel. pump itself (usually a plunger or diaphragm) has a fault of some description. Unless the ignition timing is miles out, that would be more likely to cause either low power right through the rev range (retarded) or pre-ignition (advanced).

Without the engine running, take the filters off and manually move the throttle linkage to full throttle while looking down the carb - there should be two healthy squirts of fuel being pumped into the primary venturis, they should start squirting right off the idle stop.

Good luck!
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