1970 Chevy Truck

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SERJIO13
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Engine Performance problem
1970 Chevy Truck V8 Two Wheel Drive Automatic

I have a 1970 chevy c10. 1/2 ton two weel drive. 350 cid just put in edlebrock carb and new plug wires. my plugs are gapped at 35.all my vac hoses are in good shape and i have tested 6 times so far i am at the point were my numbers go up on one side and go down on the other now wen adjust the iddle up or down these numbers flip flop.wat do i do ? i have already tried advansing the dis.
Feb 10, 2010 at 2:49 PM
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RASMATAZ
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Try adjusting the A/F mix, look for vacuum leaks and adjust the ignition timing and check dwell angle if its a conventional distributor/contact point/s
Feb 10, 2010 at 10:34 PM
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SERJIO13
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the truck has been upgraded to a hei distributer.
wat i have noticed wen they test idle they test with the load on the engine.now wen i adjusted all of these options i did it wen it was in park iddleing. now im thinking if i redo all my adjustments with its load meaning in drive with the (E-BRAKES & POWER BRAKES) DEPREESSED. since ther is a diference wen in park idle vs idle with brake like if you wre stoped at a light. am i on the right track or am i way off?
Feb 11, 2010 at 8:13 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Adjust the curb idle speed and ignition timing while in drive position
Feb 11, 2010 at 8:38 AM
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