i got a basically stock tbi 350 in my 91. i rebuilt it couple years ago, but the ignition has 220k miles on it, and i'll bet its wore out. time for upgrades. was planning on the MSD 6 or MSD 6-offroad ignition control with the GM late model blaster coil. i already got 8.5mm MSD wires. and i'll replace my plugs with new delcos. is the MSD pro-billet distributor worth the $300 bones, or should i just throw a MSD cap & rotor on my stock distributor. ill bet my stock distributor is pretty wore out, but $300 bucks is alot for a distributor. is anybody running the msd pro billet distributor for late model GM's?