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Old 06-15-2020, 12:57 PM   #23
RyanAK
Senior Member
 
Join Date: Feb 2013
Location: Mifflinburg, PA
Posts: 304
Re: 78 Suburban surging then dies on long grade

Thanks, geezer. I gotta look at the carb itself and see if it has the right holes for a bracket.

I hadn't even thought about the mechanical advance starting to come in... good point and yeah, I can check that with the light. Paperwork with the advance kit says the light springs should start to come in around 1000rpm. I was actually thinking about the carburetor coming out of the idle circuit. Guess I could watch for a vacuum drop with the vac gauge...
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