Re: NF Fairlane
A ggod start is usually a cat back exhaust. Single 3" or twin 2 1/4". Cost you about $500.
Next would be a good air filter, K & N, about $100, and a better breathing snorkle, you will have to do a search in the forums for which one to use, as i have no idea which ones are best and what will fit on your car.
But all that will give you a bit better throttle response, and probably a bit better economy too.
70 GT Ford Capri
302 Windsor (347 someday)
Auto, Manual - Manual, Auto.
(I'll work it out one day)
Hilux Diff - 4.1 Detroit Locker