bigd_92503

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Question Asked: 1984 k5 Blazer (Rochester Quadrajet Carb)
December 06, 2010, 01:07 PM
Replaced 350 motor w/350 gm goodwrench motor. Carburetor sat for 6 mos. Truck starts and idles fine, it gets to a certain rpm and falls on its face and you have to back off the gas, it also is running very rich, so bad that it burns your eyesand your clothes smell like gas/exhaust. Fuel pump press. checks out, no vacuum leaks all electrical has been checked out and is fine. Does this sound like the carb needs to be rebuilt?
Question Asked: Engine backfires when there is a heavy acceleration
December 01, 2010, 08:58 AM
The vehicle is a carburated 1984 chevy 350 K5 Blazer Starts and seems to idle fine, (It is set to 8 deg. BTDC) (And the Distributor Cap seems to check out ok, no visible signs of cracks). When you first start to rev it up it acts ok. When you rev it higher or get on the accelerator it stumbles and there is some backfire. What causes this? And what should i be checking for?
Question Asked: engine backfires when rev'd really high?
December 01, 2010, 07:43 AM
hello, The vehicle is a carburated chevy 350 K5 Blazer Starts and seems to idle fine, It is set to 8 deg. BTDC. When you first start to rev it up it acts ok. When you rev it higher or get on the accelerator it stumbles and there is some backfire. What causes this? And what should i be checking for?
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