C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Nov 26, 2009 | 10:00 AM
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Big Daddy's Vette's Avatar
Big Daddy's Vette
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Need help 1989 c4 stock motor.I have long tube headers,duals all the back with flow master mufflers 40 series.O2 is hook up and cats are out.
Car sounds exc and runs awesome,no codes or dash light. My question is next i want to install a cam.What cam should i use? Looking rough idle with the great cam sound. My other question i want to do this with out computer tuning and no codes or dash light How far can i go.

Thanks
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Old Nov 26, 2009 | 10:04 AM
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Originally Posted by Big Daddy's Vette
Need help 1989 c4 stock motor.I have long tube headers,duals all the back with flow master mufflers 40 series.O2 is hook up and cats are out.
Car sounds exc and runs awesome,no codes or dash light. My question is next i want to install a cam.What cam should i use? Looking rough idle with the great cam sound. My other question i want to do this with out computer tuning and no codes or dash light How far can i go.

Thanks
Put a GM ZZ-4 Cam in it, with matching LT-4 valve springs and retainers. I ran one for years, and would run it again.
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Old Nov 26, 2009 | 10:09 AM
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With no other mods a LPE 211 or TPIS ZZ9 cam will work well. Comp Cams with similar lifts will work well too. To get the benefit from most any cam you will need at least a mail order tune.
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