Thanks alot! Some production numbers: total corvettes produced in 67-22,940. 14,436 convertables. 3,788 combined with A/C. 2,101 had the tri-power 400HP. rarest option on my car is headrests- 1,762. info gathered from Vette Vues fact book for 63 - 67. I DONT have a numbers matching motor. If I...