looks like it's just valve timing on cams ,,,,the lift appears to be the same as Dia. cams. ,,so It's the same valves ,,I think,,,I don't trust AllData that much.

dave h.
'89 Raider V6 5spd;Aisin Hubs;; Gen2 LS: frt. brakes, rear coils;U.C.arms;R.trailing arms;idler arm; rear LSD axle w.disc brakes ;2 battery system for Dog's fan; relocated ECU; custom bumpers;J.Baker receiver;Conferr roofrack; t-bar crank.