[crazypete]

For the ultimate, get afr 165's, 185's for a little less bottom end kick and room to expand into a supercharger. Everyone says the gt-40p's from the explorers are a pain to get plugs into so they dont hit the headers. Plug goes straight out and not at an angle. I shall post my reflections on this as I go to mount my gt-40p's using standard mac headers in a week or two.

I run the holley street avenger 670 vacuum secondary and it is the perfect size for a mild modded motor. I thought the 570 I had before was perfect for a totally stock motor but left no room to expand. I had an issue where the engine wouldnt run at all if the choke wasnt open all the way so I got pissed and ripped it out. Starts fine even in mid winter chokeless with a little pump of the gaspedal to start it and you babysit it with some light throttle blipping for 5-10 seconds. After that, you're all set. If you set it to run lean, it will heat up fast enough so that cold running is not an issue.

For exhaust, I warmly recommend a bassani x-pipe and american thunder. Side dumps dump the exhuast right under your window. In stop and go, you'll be sucking it all in. Think of it that way. Plus I dont think the sidepipe look really fits the mustang's sleek rounded bodystyle. The look works better on the more angular f-bodies.

Just my thoughts...

Have fun!