Thread: GM carb'd 2.8 tuning??
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07-15-2006 02:16 PM #1
GM carb'd 2.8 tuning??
I have a 84 Chevy S10 with a carbuerated 2.8. I have been having issues with getting it to run well.
When I get into the secondary it will stumble and seems to backfire and run poorly before it starts to move faster.
I was hoping it was just due to a air fuel ratio problem but it looks like when I get into the secondary it runs between 12 and 13:1 and from what I understand that is good?
Im assuming I may be having vacuum problems. When I get into the secondary the vacumm drops down low. Im not sure what the measurements are on the guage but one side sais between 5 and 10 and the other is around 100 and 200.
Can anyone please help me
RJ
Good to have her home finally, still need to go back and give her another polish after messing with the engine stuff. Made it up to Idaho. Also a local show.
New guy from Utah.