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RPM Question
When I put the truck in gear the tach drops 500 to 600 RPM. What would cause this much of a drop? I have to idle at 1200 in order for it to run in drive. I am running a ZZ502 that has a pretty lumpy cam. Is this normal?
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Bill Durham
http://home.attbi.com/~bulldurham
72 Cheyenne
Restoration in progress
Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed.
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