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I have a 2.7L MFI track engine with specs close to yours. I'm mostly DIY so have learned a bit about tuning the MFI, but am not an expert or anything. A few comments:
- Being so rich that you smell fuel in the oil is odd. I've never had that issue. I makes me wonder if you've got fuel dumping somewhere. Cold start or warmup circuit malfunctioning, or a leaky injector?
- I'm guessing your setup may have the cold start circuit disconnected. It's basically a set of tubes in the stock airbox that dumps raw fuel into the stacks for cold starts. If you do have this setup, maybe it's over-fueling?
- The warmup circuit is the bellows thing on the rear of the pump that normally attaches to a hose that is plumbed to the heater boxes. If you have headers, you need a way to tell the pump to operate in "warm" mode, or you'll be rich all the time. How is yours set up? Pumps converted for racing sometimes have this circuit blocked off and replaced with an adjustment screw.
- From a basic adjustment standpoint, if it's rich on the bottom, you should be able to lean it out using the so-called idle circuit adjustment. It's the little spring loaded adjuster screw on the rear of the pump. And it's counter-clockwise to adjust leaner (opposite of the main rack adjustment under the allen screw).
Scott
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