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Old 10-16-2009, 02:53 PM   #1 (permalink)
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Default Looking for a 1 barrel carb style TBI

Like the title says.
I am looking for a 1, or 2 barrel throttle body injection unit that will bolt up to the intake of a 6 cylinder motor.
Any ideas where to look? Doesn't have to be 100% bolt on, I can fab up an adapter if necessary.

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Old 10-16-2009, 03:54 PM   #2 (permalink)
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Anything 80s GM TBI will fit the bill. I don't remember the various injector sizes, but a
2.8 V6 TBI might have small enough injectors. You will need an adapter though.
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Old 10-17-2009, 01:53 AM   #3 (permalink)
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A fairly common mod for the 6 cyl is to machine the carb pad on the intake to accept a standard 2 brl holley carb. The 1 brl carb pad cast into the intake is one of the bigger restrictions to flow and power that the 6 cyl has to deal with, so if you go to the trouble of machining the area to swap on a TBI, you might as well follow the same guidelines used to open up the intake for a 2 brl carb and get the flow enhancements for your effort. If you go that route, it isn't a far stretch to drill the carb pad to take a 2 brl holley pro-jection unit. IIRC, there's even an adapter available from holley to bolt the pro-jection onto a 2 brl intake, that might make the job a little easier. I would avoid using the early GM single injector TBI, they don't have the support or performance potential of the aftermarket TBI systems, so it would be a lot more work adapting one of those GM units to your Ford, with plenty of custom mods to install the system and ending up with less adjustability for tuning and most likely less hp potential compared to the holley TBI.
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Old 10-17-2009, 03:26 PM   #4 (permalink)
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Quote:
Originally Posted by Rickmaan View Post
A fairly common mod for the 6 cyl is to machine the carb pad on the intake to accept a standard 2 brl holley carb. The 1 brl carb pad cast into the intake is one of the bigger restrictions to flow and power that the 6 cyl has to deal with, so if you go to the trouble of machining the area to swap on a TBI, you might as well follow the same guidelines used to open up the intake for a 2 brl carb and get the flow enhancements for your effort. If you go that route, it isn't a far stretch to drill the carb pad to take a 2 brl holley pro-jection unit. IIRC, there's even an adapter available from holley to bolt the pro-jection onto a 2 brl intake, that might make the job a little easier. I would avoid using the early GM single injector TBI, they don't have the support or performance potential of the aftermarket TBI systems, so it would be a lot more work adapting one of those GM units to your Ford, with plenty of custom mods to install the system and ending up with less adjustability for tuning and most likely less hp potential compared to the holley TBI.
Langdon Stovebolt who specializes in inline stuff might be able to help you out. He makes 1 barrel carb spacers that are more reasonable then the other brands. I think his website is stoveboltenginecompany.com
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