High Performance Pontiac was published by Stephen Schneider. It is a re-titling of TA Magazine.
The publishing company was JHS Publications in New York, and the editor was Martyn L. Schorr who had previuosly edited dozens of automotive titles including Hi-Performance Cars and Custom Rodder. Schorr was also the founding editor of Vette. More information on Mr. Schorr can be found HERE.
High Performance Pontiac was sold to the McMullen Argus Publishing division of K-III Inc. in 1997. K-III later became Primedia. The magazine ended in 2014.
The magazine was published up to 2014, but only images through 2000 are presently complete.