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ok guys i got kinda a dumb question but i need to know

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Old 08-23-2008, 07:14 PM
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Default ok guys i got kinda a dumb question but i need to know
what is the redline on a old 350 tbi 1989
and what are some little things i can do to give it a little extra power
please help me out guys
thanks
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Old 08-23-2008, 07:58 PM
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5500 red line on the stock rotating assembly is a good place to start. Look to Edelbrock for a TBI intake manifold and matching Performer camshaft. That package will freshen her up a bit.
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Old 08-23-2008, 08:04 PM
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Swap in a modded LT1 from an Impala & start blowin up trannies & a rearend! Ask how I know.
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Old 11-09-2008, 08:56 PM
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incorrect, the stock redline on TBI trucks is 4700RPM.
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Old 11-09-2008, 09:01 PM
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See, no stupid questions!
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Old 11-09-2008, 09:06 PM
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Originally Posted by bww3588
incorrect, the stock redline on TBI trucks is 4700RPM.
thats what i was going to say. those are the worst heads gm ever produced
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Old 11-09-2008, 09:08 PM
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Originally Posted by dirt track racer 81
thats what i was going to say. those are the worst heads gm ever produced
agreed. i think all TBI engines were 4700 RPM. i guess the flow goes into stall after that because of the shitty intake runners.
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Old 11-09-2008, 09:11 PM
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You guys think they REDLINED at 4700? or shifted at 4700?
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Old 11-09-2008, 09:15 PM
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stock redline is 4700RPM, fuel cutoff is 5000.
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Old 11-09-2008, 09:17 PM
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Irocs were like 5000 so 4700 doesn't sound unlikely.
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