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Old 11-05-2010, 07:13 AM
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89 firebird prom switch??

Ok guy i have a question for u. i have an 89 firebird which i am rebuilding the stock lo3 for it all o changed was flat top piston and a HT383 roller cam my question is would i need a new prom or chip to run that cam ? also it tbi thanks

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Old 11-05-2010, 03:07 PM
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I just googled high performance eprom chip and got many sources. I would contact one of them, like Hypertech, and discuss your project.
The car will run without replacing the eprom but to get good performance, changing out the eprom will help.

vicrod
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Old 11-06-2010, 08:34 AM
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ok thanks man im deff going to check that out
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