I just re-read the first line in my response and realized it may not have reflected what I was saying.
I was calling my province the A-holes for instituting an emissions program, at all, 30 years late to the party(firmly bolting the gate after the horse escaped, lived a long life and died and was made into glue).
Most American states put some kinda enforcement in place shortly after the first catalytic converter attached itself to a Chevrolet in 1975.
My Province didn't in the 70s, didn't in the 80s, didn't in the 90s. The A-holes waited until 2002 to start a program that most states were ditching (because it was inneffective and just penalized personal vehicle owners needlessly).
I wouldn't blame you for pitching your air pump if'n you don't need one, but Steve is entirely correct in saying an EFI 5.0 litre, with everything working properly, will really deliver the goods mileage and performance-wise.
Too many of us with a dead or dying EVR or EGR, or rotted out AIR pipe start blaming the cat and pump on our troubles, when that just isn't the case.