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View Full Version : What intake do i need to get for a 1998 4.6 gt i am adding nitrious


crouchintangchasa
09-12-2009, 12:44 AM
PLEASE HELP! I AM GOING TO DO AWAY WITH FUEL INJECTION AND GOING CARBORATED? I DON'T KNOW WHAT THA HELL TO DO?:confused:

CE_BRENT
09-18-2009, 10:37 AM
No problem... except the stock heads on a 1998.

We have a PN 2839 kit, which is our PN 2838 4.6l Victor Jr manifold plus a PN 91237 Timing control module to fire the plugs when you are using a carb. Since the runners are pretty long this manifold works well over a wide rpm range.

We also sell it outfitted for EFI as PN 28385, but you want the carb version, with no machining on the injector bosses.

The deal is the manifold port exits are sized for the 1999 and later PI heads. You can either switch to these heads (they work a lot better), or you can take your heads off and port match them to the PI gasket on the intake ports.

Good luck with the project.