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Re: 77 Dodge B250 360 cold running issues
Mogs #759161 April 14th 2020 6:36 pm
Joined: Apr 2010
Posts: 2,847
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I threw out my K&N air filter after finding a fine layer of dust in throttle body and holding the filter upto sunlight and seeing right through it. The typical online responses from K&N fanboys were I under or over maintained it.

The carb throat is going to add more restriction to flow than a paper filter element ever could, until it's nearly totally clogged.

Better to add a cold air intake of not already present. IIRC wedgy beefed his up. I've been thinking about doing the same but mostly as my stock accordian plastic CAI pipe is cracked in places and was allowing some prewarmed air to enter. For now I just used some Nashua Flexfix tape to seal those cracks.

Re: 77 Dodge B250 360 cold running issues
Mogs #761815 June 03rd 2020 7:13 am
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A new set of spark plugs sorted it.

Any reason why my number 2 cylinder spark plug is black and the rest are white?

Re: 77 Dodge B250 360 cold running issues
Mogs #763014 June 30th 2020 4:05 pm
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Turns out the problem I was having was from a split carb to manifold gasket.

Even though I had tried the usual spraying gt40 / wd around the carb base to check for vac leaks and found no change in rpm.

When I tweaked / pulled the carb up slightly the engine would stumble and die.

The carb gasket actually looked ok, was just a bit delaminated.

After fitting a new gasket she's running great now. Very happy.


Very rich exhaust condition caused by a lean mixture. WHO KNEW. Livin' and learnin'

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