The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Intermittent severe missing or hesitation

Mike C · 03-29-2018, 10:11 PM

I'd look at putting a Skip White HEI in it for $69. That gives you all new components and should eliminate the ignition except for plugs and wires at that point.

Does it backfire through the carb? Mine did years ago with an intermittent issue that turned out to be a valve guide that had failed and randomly the valve would hang on the seat and it would spit back out the carb. Next cycle it would seat fine and might be weeks before it would do it again. Only found it when I had the valve cover off and I was leaning on the motor. Pushed on the rocker/valve and it moved over! WTF?

03-29-2018, 10:11 PM	#15
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,714	Re: Intermittent severe missing or hesitation I'd look at putting a Skip White HEI in it for $69. That gives you all new components and should eliminate the ignition except for plugs and wires at that point. Does it backfire through the carb? Mine did years ago with an intermittent issue that turned out to be a valve guide that had failed and randomly the valve would hang on the seat and it would spit back out the carb. Next cycle it would seat fine and might be weeks before it would do it again. Only found it when I had the valve cover off and I was leaning on the motor. Pushed on the rocker/valve and it moved over! WTF? __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax