I've been using Meguiar's Hi-Tech Yellow Wax #26 on my 70 SS396. It looks pretty good, is pretty easy to apply. The car has a 15+ year old paint job and it looks decent. I don't think it lasts as long as it could, but I drive the car almost every week. I know Rich uses something pretty unique on his TA and I may try that out this year. Here's my 70 from this past summer.
Black 1970 SS396
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