[Sold] Holley Projection 4Di fuel injection, 350-500 HP

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Old Nov 27, 2010 | 03:45 PM
  #1  
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[Sold] Holley Projection 4Di fuel injection, 350-500 HP

<<<SOLD!>>>

Practically new with only 200 miles of use. I purchased new and it has been stored in the original box for 10 years. Bolts to any square bore carb flange. 900 CFM 4-barrel throttle body supports engines up to 500 Hp. I highly recommend that your engine makes at least 350 Hp to operate properly.

Complete system from fuel pump to ECM. All you need to do is install a new O2 sensor (mine was cross-threaded but is included with the kit) and have a computer with an older version of Windows and 3-1/2 inch floppy drive (my computer had Windows ME). System uses standard GM sensors available at any auto parts store and is easily serviceable.

This is a rare opportunity to own a nearly new-in-the-box programmable closed loop fuel injection system for less cost than a carburetor!

$450 shipped. If shipping cost exceeds $50 then you pay the extra cost.

Last edited by QwkTrip; May 2, 2011 at 06:36 AM.
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Old Nov 28, 2010 | 11:31 AM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Bump
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Old Nov 28, 2010 | 04:54 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

i'll give you 400 for it
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Old Nov 28, 2010 | 06:29 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Are you located in the Netherlands? I'm not shipping outside the US. Too much hassle.
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Old Nov 28, 2010 | 07:08 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

whats the part #?
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Old Nov 28, 2010 | 11:13 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

504-21S according to the big sticker on the side of the box.
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Old Nov 29, 2010 | 01:13 AM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Here's a picture of the tag I pulled the part number from. It can also control spark timing if coupled with a GM 7-wire distributor, or you can just use any stand-alone distributor like HEI or older style that does its own thing.

Last edited by QwkTrip; Jan 19, 2017 at 11:50 PM.
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Old Nov 29, 2010 | 02:49 AM
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Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Holley Projection 4Di fuel injection, 350-500 HP

Originally Posted by QwkTrip
Are you located in the Netherlands? I'm not shipping outside the US. Too much hassle.
I have a US shipping address too
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Old Nov 29, 2010 | 07:24 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

PM sent to Twin_Turbo.
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Old Nov 30, 2010 | 11:07 AM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Originally Posted by QwkTrip
PM sent to Twin_Turbo.
I have the same ECU, but the multiport harness, software, etc for sale if you know anyone looking for a spare. NOT COMPLETE like yours.. Thats a steal for $400.. dang..

-- Joe
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Old Nov 30, 2010 | 06:45 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Thanks.

Still for sale. Added little bonus that people know where to go if they want spare parts.
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Old Dec 1, 2010 | 07:00 PM
  #12  
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Sale pending.
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Old Dec 2, 2010 | 03:20 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Well keep us posted, I may be next in line.
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Old Dec 2, 2010 | 06:48 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Will do.
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Old Jan 20, 2011 | 06:10 PM
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Re: Holley Projection 4Di fuel injection, 350-500 HP

Sold!
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