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Old March 24th, 2008, 07:04 PM   #1
PCK_4xCustoms
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Default 390 TBI convert

Wondering how easy it may be to convert a 2bbl 390 motor to a TBI.
If anyone has done this before I would love some insight into it. Looking to have the most dumb setup on it as possible, I hate dealing with complicated wiring and computers.

thanks
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Old March 24th, 2008, 09:15 PM   #2
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you can get a standalone system or you can modify a GM tbi system to run on a ford. really it's not hard. will need some modifying of a few ford sensors to make it work.
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Old March 25th, 2008, 09:57 AM   #3
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Well its '75 F250 so there arent much of any sensors on it. What kind of mods would a GM TBI system need? Could I use a SBC 350 intake or TBI, from the looks of it the TBI seems to have the same bolt pattern
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Old March 25th, 2008, 10:35 AM   #4
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you'll need to install knock sensor/s, O2 sensor, map, coolant temp, TPS and IAC are on the tbi unit itself, you'll have to run a GM style hei adapted for a ford and use my special wiring to make it all work. you'll also need to either run a electric pump(recommended) or get a mechanical pump capable of 15 psi with regulator. you can use a 4 barrel intake manifold and buy a holley adapter plate to use the TBI.
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