Engine Stumble Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lts70 · 05-29-2009, 02:23 PM

My 1970 stumbles a little if I punch it from a dead stop if I ride the clutch a little and get the rpms up before taking off it does fine. Other wise it runs great. It has a built 327, HEI, Edelbrock Air gap intake, Edelbrock carb 650, headman long tube headers, 9.5 to 1 compression, Crane RV cam.

I had a similar problem with my previous engine I had in the truck (307) and the only component I swapped over was the GM HEI distributor. Could it be a counter wait spring issue? I pulled the distributor out of a stock 84 Chevy truck I believe. Is there any thing I can do to check my hunch or do you guys have some other ideas that could be the culprit?

05-29-2009, 02:23 PM	#1
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,038	Engine Stumble Question My 1970 stumbles a little if I punch it from a dead stop if I ride the clutch a little and get the rpms up before taking off it does fine. Other wise it runs great. It has a built 327, HEI, Edelbrock Air gap intake, Edelbrock carb 650, headman long tube headers, 9.5 to 1 compression, Crane RV cam. I had a similar problem with my previous engine I had in the truck (307) and the only component I swapped over was the GM HEI distributor. Could it be a counter wait spring issue? I pulled the distributor out of a stock 84 Chevy truck I believe. Is there any thing I can do to check my hunch or do you guys have some other ideas that could be the culprit? __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance.



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