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what can i do with old EFI system ?

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Old Dec 26, 2003 | 09:01 PM
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ddzmann68
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what can i do with old EFI system ?

Hi,
I'm rebuilding a 90' F-150 4.9L. I've rebuilt the motor(.30 over and an RV cam) and rebuilt the trans. I'm getting a miss and the timing has been done, the only thing that has not been done is the fuel injection. My question is what can I do to upgrade the fuel injection and where can I get the parts?
 
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Old Dec 27, 2003 | 07:41 AM
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From: shepherd
injectors, polish and port the head and intake
 
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Old Dec 28, 2003 | 08:41 AM
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ddzmann68
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That sounds great, does anyone know where I can buy replacement injecters and if so what would they cost, and sinci I have upgraded the cam and boared it out should I go with bigger injecters?
 
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Old Dec 28, 2003 | 10:41 AM
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Originally posted by ddzmann68
That sounds great, does anyone know where I can buy replacement injecters and if so what would they cost, and sinci I have upgraded the cam and boared it out should I go with bigger injecters?
A set of 24's or even 30's should get it done. You can get them new through Jegs or Summit, or, you can look through other forums and find a good deal on a set of used injectors with low miles.
 
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Old Dec 28, 2003 | 11:12 AM
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If you get larger injectors than stock, you will have to get a chip for the computer to compensate. Otherwise, the truck will run very rich.
 
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Old Dec 29, 2003 | 06:28 PM
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ddzmann68
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took the plunge and bought new ones. The injecters were 43.00 each, I went with stock.
Thanks for the help.
 
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