a spec charger rule would regulate the competition and probably make more of a noticable difference between classes as to a spectators view, but honestly i wouldn't like the idea of being limited to a certain charger manufacturer for various reasons. Not just me, but lets say if you made the rule out to basically everybody can only run a Silver Bullet 66, some people may not like I.I. products and also, not saying I.I. would do this, but if it were limited to that one and only charger, then what is now a $1800-$2000 charger (I think) would probably then become a $3-$4000 charger all because that manufacturer knows that they need that charger to be able to compete, and they know they have no other choice than to buy that charger. Even if you do a sponcer ship deal with prize money or a sign on vouture for that turbo, doesn't mean they still won't jack the price up. Kinda like a %15 off sale at a hardware store, but just a week or 2 before they jacked the prices up just to get ready for the sale. Another problem i see is getting all of the organizations to go with one spec charger. What happens when say NKTPA goes with lets say a ProStreet 66 only rule, but then a Southern OH or IN orginazation only allows a Silver Bullet 66. Guys that don't have a pull that week end that want to run with the other orginazation either has to buy another turbo for just that weekend or just sit at home. Again, no insult or assumptions to any turbo manufacturers, just using them as examples...
Thats my $.02... Just something to think about.