Hello, I just acquired a 1968 Firebird 400 HO 4sp coupe. It is a survivor car with 1 paint job. Original power train, engine WQ (vin on block), trans and diff. Previous owner swapped intake, carb and distributor and discarded them. I am looking for the correct date coded parts to reinstall. Cowl tag is 09E LOR Body 4185 Invoice date of 10/06/1967 Engine date G 11 7 Head dates F 27 7 When did the intake, carb and distributor get installed to engine? Thank you