RTEC19130002 / 191-30002 - Application Notes 83-85 Chevrolet Camaro & Z28 305/5.0L (2-1/4" & 2-1/2" systems - Engine Codes F, G or 7) 82-85 Chevrolet Corvette 350/5.7L 83-88 Chevrolet Monte Carlo SS 305/5.0L 83-85 Pontiac Firebird 305/5.0L (2-1/4" & 2-1/2" systems - Engine Codes F, G or 7)r 7)