Distributor: 94 LATE -97 Camaro Corvette Firebird ACCELLL OPTISPARKFor those with the 94 97 GM V8.. these distributors were subject to extensive revision in the later 90's.. now seems ACCEL has perfected it.. thankfully. The issues were extensive particularly overheating and vapor leak the optispark system.. leading to what seems to be like a spark plug or lead miss were soon after getting warm. Let it cool and maybe 30 minutes later it may start and drive for 10 minutes. Think of vapor into a optispark lazer