I have an 03 cavalier and want to place the green top injectors and 02 rail on my car.

Question 1. Since the 03 rail has a fuel pressure regulator or the rail and the 02 does not but has the fuel pulser in the line, is it posable to add a aftermarket fuel pressure regulator to the system?

Question 2. Why does the line with the pulser go in the middle of the rail? Are the rail designed different inside?

I have done research and found that the an fittings for the quick fit to hard lines by the firewall are by russell 640863 & 640853 so it all seem possible.
Want able to find many 02 setups fuel setups out there

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I make a billet fuel rail with an lines.. Pm me if interested

The 02 rail has a regulator and the damper, if you want to use it u have to pull the spacers out of the head. Then it hooks up like your 03+.

Nevermind just clicked the attachment and seen why your asking.

Why not just get the cups that Jason can also help you get and use the 03 rail? Seems easier to me and will cost the same, if not less, than the an fittings.



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