Tbi to carb conversion on vortec block

[johnsmith]

Going from tbi to edelbrock 600. Gonna throw this on and I'll be back.

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[johnsmith]

Looks like I was having an some sort of intake leak. Seals burned up from all the back firing.

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[johnsmith]

So carb swap is complete runs fine and everything only took 20 mins.( I wish) but in all seriousness looks way better more air and more fuel.

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[johnsmith]

got the throttle linkage hooked up. had too make a few adjustments but it works. I think my throttle spring might be on backwards but ill re do that if it aint right.

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[johnsmith]

Now I'm moving on too the holley fuel pressure regulator and wiring of the fuel pump. PN 12-887 holley bypass style FPR. Now as for the wiring I'm not doing that purple wire with the white stripe. I don't want the computer to still control the fuel pump. so I'm going to do it straight off the the relay.

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[johnsmith]

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here's the fpr lines routed

 

[johnsmith]

Alrighty managed to get it to run on the EST DISTRIBUTOR. So I know the carb is at least in decent shape.

 

[Supercharged111]

What was the objective here? On a stockish motor, ditching the TBI is a downgrade. Lose that spacer collar on top of the carb, it's shrouding it and restricting airflow. A good chunk of the airflow comes in from the sides.

 

[89GMCJOHN]

Cool.....I have done 4 of these conversions on various vehicles .....always happy with the results .....the only recurring issue I see here in Florida is heat soak / vapor lock ....... Im not saying you will run into it with your setup but you may ...I always run a plastic carb spacer to help with that issue and drill a 1/16 hole in my fuel cap.

 

[johnsmith]

What was the objective here? On a stockish motor, ditching the TBI is a downgrade. Lose that spacer collar on top of the carb, it's shrouding it and restricting airflow. A good chunk of the airflow comes in from the sides.

Those aren't tbi heads