That stuff was secret. I remember seeing intakes covered in the pits.
It would not have been secret if Mopar was paying the bills and providing parts. When Bob switched to Fords Mopar Performance should've been able to copy that top end package and sell it. I doubt that it actually made 900 hp since I don't think an X block would handle 900 hp for very long but that combo might have been making 800 hp.
If Mopar had sold a top end package that made 800 hp on a high compression X block small block they would've moved the bar up a few notches. Lots of guys would've wanted those parts in the 80's and 90's.
