Originally Posted by Ghostvette

I had a C3 & C4 (78 & 85). My 78 was slower than dog crap, had a crappy respray & the interior was a bit ragged.

My 85 had that gawd awful pad on the passenger's side. I took that out and replaced it with a glove box mod. I put a 160* thermostat in, a Hypertech Stage II chip, 25% underdrive on the pulleys and an epoxy plenum & runners. It was so much fun to see the look on 5.0 driver's faces when my 85 would beat them.

The big challenge with the C4 & C5s was the VATS, too many people kept half a hundred keys on a key ring and then couldn't figure out why the car wouldn't start. I lost count of how many VATS bypass cables I installed.