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Discussion Starter #1
All,
Fighting this mis fire or stumble at 3000 rpm..
Motor:
406 stroker 6" rods
10.2.1 compression
Brodix Heads 205-160
Cam Comp Xtreme 284H
Holley 830 HP CARB.

MSD 6A / MSD Distibutor

B&M STALL 2300-2500
TURBO 350

Light load around town I get this backfire or miss out the Exhaust?????

any suggestions??

Thx.
Gary
 

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Sounds like lean primary to me. do you know what the jets are? What do the plugs look like after these events?

Can you isolate the pop to a throttle position? Primary accelerator pump out of adjustment?
 
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