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GlennBrittain · 01-22-2008, 01:17 PM

I have a donor 89 GMC, that I plan on useing the motor for a rebuild with the TBI. I have been researching what I can and can not do with the TBI on the internet. Some of the sites I found was discouraging while others said the TBI was good and would work with a 30% engine upgrade. I would like to know if anyone has a TBI system working on a mild 383.

01-22-2008, 01:17 PM	#7
GlennBrittain Senior Member Join Date: Jun 2003 Location: Panola County Texas Posts: 401	Re: whos done the TBI conversion? thoughts I have a donor 89 GMC, that I plan on useing the motor for a rebuild with the TBI. I have been researching what I can and can not do with the TBI on the internet. Some of the sites I found was discouraging while others said the TBI was good and would work with a 30% engine upgrade. I would like to know if anyone has a TBI system working on a mild 383.