"...says Abraham drove a 63 (MaxWedge wagon..."
Aw, Shucks !
"...I'll go back now & look up some results from the early years.."
There were certainly some '56 thru '59 Pontiacs racing. But, I like to start with the 1960 models. There were several of these which did real good. I've mentioned this on several other threads, but not on this one, I don't think.
At the 1960 Nats, Jim Wangers drove the Royal Pontiac "Hot Chief #1" '60 Pontiac to the Stock title, making him "Mr. Stock Eliminator". In the picture that I always think of as being the Stock final, it shows two '60 Pontiacs running against each other. Don't know if that was just a class run or for all the Stock marbles ?
I've read that for those who wanted to upgrade the performance level of their '60 Pontiac, they could order a certain package, & along with the new car would come engine parts to upgrade it to 389SD specs. I'm sure the Hot Chief had all the latest Pontiac "go fast" parts on it, plus a Royal super tune.