I'm seriously considering installing dual glove compartment door springs for faster closure!

 

I realize they're not a supporting vendor, so I hope this is OK...

Try Kaleco, particularly the performance section, but all the sections have some good stuff!

 

Installing an oil-filled chrome coil and solid-core spark plug wires is another big performance upgrade - of course you might get some static through your radio afterwards...

Clear Distributor Cap:no performance gains, but a big "oooh-ahhh" factor when showing off your engine compartment.