This is my former brother-in-law's 1988 5.0, and he's done a couple of small mods to it, such as:
-Under drive pulleys.
-Dual exhaust with "H" Pipe.
-GT40 Upper and Lower Intake.
-Chip (unsure what kind).
You can see the back of my Niner on the left.
Sorry about the poor quality on this pic
We went out the other day to see how quick it would get up and go, and I think it would be a lot quicker off the line if he didn't lose traction, as he got a nice loud, long squeal from the tires at launch. I timed him at an even 7 seconds from a dead stop 0-60 mph which he and I find to be fairly respectable considering what he's got so far.
However, and I find this funny as hell, my stock Niner isn't that far behind! The best I've ever timed was right at 7.4 seconds. We still haven't gone head-to head yet, nor made it down to the track to see what we'll turn the 1/4 mile in.......YET!