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Sorry for straying off track w/ the '75-up cars but they're a cool part of the BB Nova Supercar story also some of the last gasps of real performance available w/ EPA etc making it difficult for conversion groups or any Chevrolet Dealers still doing such a thing.
Looking for info on the above '75 ZLX Phase-3 Motion car, I was reading the below Super Chevy mag article which mentions Motion cars but seems to push Nickey also notes little about the Hopper Chevrolet 454/450 conversion Nova they had on hand to test.
What years were Hopper offering Supercar conversions also what Hopper BB Novas or other of their cars are known built/existing?

~ Pete
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Super Chevy Mag article links...
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