TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

89 305 TBI to 350 TBI vortec

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Old Apr 8, 2008 | 07:22 PM
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89 305 TBI to 350 TBI vortec

I am looking to swap my 305TBI to a 350TBI Vortec. I was told I need a new intake manifold, computer chip, and larger fuel pump. I was also told that I could put a larger cam in the Vortec. Will everything else on my stock 305 bolt to the Vortec? I am sure someone has done this swap and I would appreciate any info on exactly what I will need. Thanks
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Old Apr 8, 2008 | 08:18 PM
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Yes, it's been covered. Well covered on the TBI forum, so I'll move this there.
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Old Apr 13, 2008 | 03:45 PM
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Re: 89 305 TBI to 350 TBI vortec

the exhaust is restictive for a 305, so you'll want something that flows better, and you'll need a 350 tb unit, or a holley one. other than tha you are pretty well covered. gmpp makes a good manifold for the swap.
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