stops increasing after 60 up hill
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Junior Member
Joined: Jul 2001
Posts: 93
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From: DALZELL illinois
Car: 1991 firebird formula
Engine: 383
Transmission: th350
Axle/Gears: 3:73 posi
stops increasing after 60 up hill
i put in a bigger cam not much bigger and headers and manifold no the car doesnt want to downshift going up gradual hills i can be floored and it will hit 2000 rpms or 60 miles an hour and it seems as if thats all it got I know the timing needs to be adjusted a bit but can low psi play a role also it seems like i cant get enough fuel but i might be wrong its a tbi 305 91 firebird
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From: Jackson County
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sjorgens
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Oct 1, 2015 07:54 PM
