John, I believe the reason the first BPE heads were basically a loser was because Vic Bloomer had virtually nothing to do with them
The port design was farmed out.
Rod Marketed them, took his lumps, and ultimately he and his brother involved themselves 100% in the second version with no outside help.
the results have been extremely positive.
I personally only know of one guy who has run the Airwolf heads in a worthy solid drag car. That guy had both the airwolf and trickflow heads on the same short block. Only difference was the heads.
the airwolf’s appeared to make more power at the track.
I know that Dr J guy kinda evaporated all the sudden back then