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305 to 350. will ecm need to be reprogrammed?

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Old Dec 29, 2005 | 08:49 AM
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hoogabooga's Avatar
hoogabooga
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From: mocksville nc
Car: '68 corvette '73 Corvette
Engine: 427 454
Transmission: TH400
305 to 350. will ecm need to be reprogrammed?
86 305 with stock carbed setup. plain 350. no performance upgrades.

thanks
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Old Dec 29, 2005 | 11:25 AM
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five7kid
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Mine didn't.
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Old Dec 29, 2005 | 11:42 AM
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hoogabooga
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From: mocksville nc
Car: '68 corvette '73 Corvette
Engine: 427 454
Transmission: TH400
thank ya sir. thats what i wanted to here.
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