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73-87 Chevy _ GMC Trucks => Performance => Topic started by: heavychevy91 on February 24, 2010, 09:07:22 am
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Im putting new engine in my truck, a 1986 C10 with a 350 bored 30 over with a mild cam. The engine in the truck now is a 4.3 V6 with the stock q-jet just rebuilt. If i put this carb on the new motor would i starve it for fuel or would it be alright?
Thanks,
Tim
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86? Is it a E4ME? If its not electronic then I think it should work o.k. You might give up some performance, though. I think the main problem would be the secondary metering rods, spring, and hanger. If its electronic you should ditch it--its worthless. If its not it could be made to work well by someone who knows these carbs.
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how can you ditch that POS? without that cable being hookedup my truck runs like.........?
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You have to get a different carb. No they won't run right by just unhooking the wires. I only had one E4ME and it ran fine but the adjustment screw on the mixture control solenoid wouldn't stay put. Every few weeks I would get a check engine light and have to adjust it. I finally tightened the screw against a washer that set the adjustment about right. That solved it for me, but it was a pain. All the headaches of fuel injection without any of the benefits.
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Oh well the carb on there now is a non computer controlled carb
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The carb itself will be fine. A couple things to check are the jet/primary rods likely have less flow area if this is a "correct" 4.3 carb...may need to change those to closer to the 350ci size. One other thing, the secondary throttle blades are limited to about 60* open on many of the carbs of this age, especially on the smaller engines, this can be altered also. Lorne
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Thanks for the info, i have also come to find out that the motor is stock bore :/