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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: redhilbil81 on March 25, 2018, 04:10:06 pm
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It stalls out in reverse or drive got a pro comp thumpa can with msd ignition a new 600cfm elderbach idles great.
Where to start trouble shooting had all this in it when I bought it so anyway any help? Thanks
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What's the ignition system you're using and what are your settings?
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Good question it’s a msd billit distributor unsure of settings but the plugs are wet fouled.dont wanna change them till I get the setting right
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Check for mechanical advance at idle, possible is in too early and dropping out when placed in gear and lowering rpm to low causing stalling.
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Is it a vacuum advance distributor?
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How to check it, man I’m learning mechanics since I bought this truck
Has not been driven much since I got it back in sept last year it will fire and idle great just the stalling then when it dies I have to floor it to get it to start,
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take a reading here (http://forum.73-87chevytrucks.com/smforum/index.php?topic=32085.0) for Ignition Timing for First-Generation GM V-8 Engines
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In reverse and drive after idle warm up
Has a 400sbc th 400 tranny elder600cfm carb so what are the possible causes.?it also has small lift thumper can and a 2200 stall and msd billet distrubor (don’t know settings) it Was all in Truck when purchased. Don’t have any mechanic friends so I really don’t know where to start.
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How about taking some pics and posting them. If you don't know, we won't know without seeing your setup.