I think its only natural for us to want to mod our cars. Ive owned Mustangs now for ten years and this is the first of the six Ive owned that Ive put major money into. This is mainly because Im 27 now, have two god jobs (soon to be 1 good job with more pay) and I can afford to do so. My first Mustang I missed payments because I was more concerned with putting work into it. How stupid is that? Thats being 17 / 18 for you....

The only thing I miss from those days is my hairline! Even now that I have more money, Im still tempted to go out and buy everything I need and want and say screw everything else. But my thing now is that I do a lot of research, look around and then when I decide I need something, Ill wait a few days before purchasing it so its not a spur of the moment thing that comes back to bite me. A young kid that works at my dealership just got his first Mustang and all he thinks about it what he can do to it. Gotta admire his eagerness. He thinks Im crazy because I have a storage unit full of parts that I havent put on yet. This includes a 351 roller block, a T5 and 90 percent of the associated parts for the swap, the parts for the black interior conversion, 3.73 gears, etc. Patience has its virtues. Its what allowed me to look around until I found all the pieces I wanted for the lowest prices possible. I got the roller 351, sn95 T5 and bellhousing as well as the PCM, shifter bezel, pedals, etc for around 500 dollars total. The parts are out there and can be had at good prices if youre willing to wait. As for costs... well it is what it is. You gotta pay to play. If it was cheap, everyone would be driving around 400 HP monsters. You gotta decide what you want out of the car and then work at it slowly. I know what my ultimate goal is but its not feasible to start on that right now. Instead Im upgrading the suspension and brakes in support of whats to come down the road. I have one year of car payments left and one year of payments on my plasma TV. After that and when my insurance goes down, Ill have 500 dollars a month of free money. Then the real mods will begin.
I guess the whole point of that is to just be patient. It seems like you may be more interested in just going fast, as opposed to whats getting you there. If you like your Mustang and want it to be faster, come up with a game plan and start budgeting for it. If you just want to go fast, then Im sure there is a newer car out there thatll get you there. But again, you still gotta pay to play.