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305 stumble idle help

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Old 12-13-2004, 04:33 PM
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Car: Black 89 Formula
Engine: ??????????
Transmission: ??????????
305 stumble idle help

okay i turn my car on let it warm up and then i rev it and it like stumbles a bit like i chugs up the rpm till like 2500 then it feels normal but it dosent have the hp and tq like it did around the 3k and up range could it be the timming.i have the lt1 cam and new timming chain with only about 3miles at most.i cant check the timming cuz i lost the damn gun dont know how i did that.lol last i had a bent push rod so i jus bent it back .

any help would be thankfull for.
Old 12-26-2004, 02:11 PM
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Car: 1989 GTA Nighthawk
Engine: 389 CID TPI
Transmission: TCI 700R4
Axle/Gears: 9 bolt 3.23
If it idles rough I'd suspect a vacuum leak.
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