The first thing I would do, just for the sake of gas mileage and performance, would be to put an OEM Q-Jet on the car. (Jon can take it from here.)
As far as the burning oil is concerned, is it burning in the engine or on it? In other words, is it leaking onto the hot headers and pipes? Or is it actually burning in the motor so that evidence shows up on the spark plugs? Or has someone following you said it's coming from the tail pipes?
