nothing much really, just full maint. check/change plugs, check/flush coolant system, and stay on top of everything else as they come.

 

What he said, and don't waste time with 3.73s, but at least 4.10s in it.

 

don't fear the gear. I love my 4.10s in my 04.

 

copper core spark plugs gapped at .035

carefull with your short throw Yes, you can shift faster, but you can actually shift faster than your syncro's can catch up...

find a nice off road x pipe on craigslist...that will free up 10 hp

 

oil change, pcv valve, sparkplugs, coils, and clean the inside of your throttle body, and if you cant afford a cold air intake put a new air filter, and clean maf

 

If you put on a CAI, make DOUBLE sure to never, ever drive anywhere NEAR ANY standing water.

I have now know (personally) two people that have nice viewing holes in their blocks all because of CAI's.

 

my old intake was behind my passenger foglight, but thats when i had a supercharger on it. maybe they make the same style cai? or custom made ones perhaps

 

I suppose that would make a bit of a difference. My old RX-7 had a CAI that fed behind an unused fog light opening. I used to beat the hell out of that car and skip it over flooded roads. I'm surprised I didn't fluid lock the engine now that I know better.

Thankfully I know better now and my Mustang CAI isn't quite so poorly located.