pontiacs (ta) come with 3 types of engine oldsmobile (mine) chevy (yuk) and pontiacs own engine ford chevy banter has been around for years and still will be bit like holden and ford ,,
Some 'birds throughout the years have had Buick engines.
If you want to build HP in a 70's 'bird the Olds is the one to avoid. The lowest HP from the factory and by far the smallest aftermarket support.
Of course, Holden will be closing their doors soon too.