Can anyone tell me the differences between the 82 ignition system (coil, distrib) versus the 83+ ones? My 83 parts car and crash's 85 have no vacuum advance deal on top, and instead have an extra electrical connector. Also, the coil itself seems larger. If this is the case, it would seem the newer ignition system is better (ie, larger coil=bigger spark)??? Would I gain anything by switching and what would that entail? Thanks in advance.