StreetStangs.net - View Single Post - 1990 Grand Marquis 5.0 EFI motor

86GT · 06-09-2007, 07:30 PM

You will also have to get a custom chip. The firing order is different, therefore the EEC will not work the way it is programmed.

You can either re wire the injector harness or get a chip. As for the crank it is the same on both HO and Non HO. All you need is the CAM and the chip.

06-09-2007, 07:30 PM	#20
86GT Member Join Date: Mar 2005 Location: Sacramento California Posts: 449	You will also have to get a custom chip. The firing order is different, therefore the EEC will not work the way it is programmed. You can either re wire the injector harness or get a chip. As for the crank it is the same on both HO and Non HO. All you need is the CAM and the chip. __________________ EEC Analyzer A9M, TwEECer, 306ci, 73mm C&L w Tuner Tube, Cobra Intake, 42# inj, Edelbrock 6037, E303 cam, 155 fuel pump, FPR, 70mm TB, E-Fan, 3.55 gears, Powerdyne 9psi actual 5psi...way more.