oldtinsmith said:BruceCompton,
Yes, G.M. did make 305/4spd. in 78! I did a web search ( 78cutlass supreme 305 4speed car ), and I think you'll find it very interesting! It just might be 1 of 99 built!
Doug
Doug, Can you tell me where to see how many of a certain car were built and what was built? Bruce