I can't help with the where to buy parts question,
But I was at the track today and there were 2 lightnings there. One was a silver 01 and the other was a beautiful blue 02. I believe they both had smaller blower pulleys and some sort of cold air induction setup.
I only paired up against the silver one, and he whooped my ***.
I had a bad launch and ran a 13.8 to his 13.1. Ouch
The other ne (the 02) ran a 12.9 on street tires which made me about **** my pants. Then he slapped on a set of ET streets and ran consistent 12.50's.
It's just not fair that a 5000lb truck can be just slightly modded and whoop the hell out of my car

hey, atleast its a Ford! (and I'll own one someday

)