Not 100% sure but believe the only place where the 390 hp engine was used was in the 428 Grand Prix.
The Grand Prix was a real boat and a great number of them were NEVER raced at the track.
No need for the cam to be bigger than the 068 camshaft for that application.
Installing the 428 engine/parts in a A-Body vehicle or F-Bird, is another story, imo.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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