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Old 03-23-2004, 07:07 PM
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305 tbi into an older 350? help...

okay I need some help on this. heres what I have and what I want to do.
I have a 1974 350 engine block with stock heads and crank.(heads were redone)
and I have a 1990 chevy 2500 series truck with a 305 tbi. I want to put the 350 into the truck and keep the tbi. I've been looking for answers everywhere, but can't seem to find any. I'd like to get a new intake that would bolt up and use the same tbi setup just change the injectors and chip. I'm having no luck finding one. What do you guys do? anyone ever done this?
Or I can just do away with the tbi and go with a carb? would it be worth doin that. or just goin on with the headaches that I'm getting now..

The 350 has new pistons, stock connecting rods, I wanted to put the edelbrock performer rpm cam in it, but not sure. I got a high performance torque converter also. will have dual exhaust with 2, 45" thrush glasspacks. 4/6 belltech drop. This will be for a show truck, driven on weekends, not a daily driver.

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Old 03-23-2004, 08:11 PM
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First off, Edelbrock should carry the TBI intake that will fit your truck, if not, then you can have the intake redrilled to match the older pattern heads. as stated you`ll need the 350 injectors and chip and you`ll also need a 350 knock sensor, the 305 and 350 have different bore sizes so the knock sensor focuses on the frequencey of the knock and they`ll be different with different bore sizes. the edelbrock performer RPM cam would be too big with a TBI and the engine would be a dog, go with a smaller grind, I`m sure comp cams and crane both list cams for your application with TBI.
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Old 03-23-2004, 09:45 PM
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what he said
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