I'm using the K/hayes disc up front with 10" drums, SBP at all 4 corners and a BB and do not have any problems and yes it's been down the strip a few times. This is the first I've heard of overheating problems with SBP wheels and can only wonder if the Dodge and Plymouth engineers figured on this when they put the 340 in the Dusters and Demons with the SBP Rallye wheels. Sorry but I'd have to say that your friend is pulling your wanker.:toothy8:
Also quite often members will put complete Kelsey Hayes brakes systems and spindels up for sale here so keep a weather eye.