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Re: Big cam in 350 tbi, high idle...
Quote:
Originally Posted by ChevyTech
The TBI trucks do not tolerate much of a cam change without a GOOD custom chip and some tuning.
If you attempt this you better have a scan tool that reads data and know how to use it, or be lucky so things work out.
You need to check the minimum air rate
Check for vacuum leaks
Check the IAC count with the engine warm and all accessories off
You need to know what the desired RPM the chip is programmed for.
Where did you get the custom chip from?
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Its the factory chip, its a 91 model. It runs perfect besides a bad throttle response (rich it seems)
Last edited by AverageJoe; 11-18-2010 at 12:29 PM.
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