Basicaly, asking how much HP / CFM you can get out of one before your snout melts.
Also, does anyone have direct measurements for OD pullies? My Jag's market is weak, and I can only find 1 @ $350+. Others would be cheaper, but I'd need measurements to make sure I didn't hurt myself. Mine is already blowing 322hp worth of air, some aftermarket pullies for SC's and GTP's may actually be smaller. This is, of course, factoring out the crank pulley diameter.