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Old 06-11-2016, 02:23 PM   #55
Mrturner1
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Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
Re: Pinging after 40-45 mins of driving?

Quote:
Originally Posted by davepl View Post
Yes, a vacuum leak could make it worse, but it's a problem that needs to be fixed on its own. I prefer carb studs (vs bolts) and then use a torque wrench. Easy to break carb corners and thermostat housings.

I'd wager that fixing the carb and the vacuum line routing together will go a long way.
I did some reading and a vacuum leak can cause a lean condition, which has all sorts of symptoms. My creeping temperature a few weeks ago was probably partially due to this. I'm ordering a whole set of those heat resistant ceramic plugs, I'm consistently melting through a different one now and it's making tuning a real PITA.

SO, I don't want to buy two carbs, but I want my truck to run and drive during the buildup of the 383. So I need to get a carb that will feed the 383 later, and also run decent on the current motor. I actually posted about this situation a couple days ago, I'm looking at the Holley 750 Street HP.
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