[Grn92LX]

First and foremost is the full tune up & fluid change. Then do 373's, new posi clutches while your there and use synthetic gear oil too w/ a bottle of friction mod. Change trans fluid to synthetic too. Then do LT headers, H-pipe and your choice of 2.5" cat back. Bump up the timing to 14* if you can and run 93 or so octane. Underdrivew pulleys are usually good for 1mph at the track or 5-10hp. Get the pro 5.0 shifter you want too. After doing this, you have a nice foundation. Then you can look into heads/cam/intake + supporting fuel/bolt on mods if you have the $$. Start w/ the basics first like I mentioned. I say go w/ LT's cause shortys are worth NOTHING on a stock 5.0.