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Technical => Engine Tech => Topic started by: 84cougar50 on January 14, 2023, 08:30:48 PM

Title: 1984 Cougar with a 5.0L upgraded to HO Cam and E7 Heads computer question.
Post by: 84cougar50 on January 14, 2023, 08:30:48 PM
I'm having a new long block put into my 1984 Cougar.  I had the reman company put in an HO CAM and E7 heads to give it more power.  My question is: can I use my old computer because now I have to change the firing order for a 351W.  thank you for any assistance. 
Title: Re: 1984 Cougar with a 5.0L upgraded to HO Cam and E7 Heads computer question.
Post by: softtouch on January 16, 2023, 12:31:26 AM
Is the car still CFI?
Title: Re: 1984 Cougar with a 5.0L upgraded to HO Cam and E7 Heads computer question.
Post by: softtouch on January 16, 2023, 01:33:50 PM
Your car came with a CFI (Central Fuel Injection). It sits on top of the intake manifold like a carburetor.
With this set-up, changing the firing order does not require an EEC IV (computer) change.

I don't know if CFI was ever used on the 351W.
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