I seen a show on TV where they were experimenting with NOS Grinds for camshafts. They used a fairly agressive cam choice for a NA Engine then a Radical grind for a NA Engine, then lastly they used a NOS Specific Grind camshaft that they "thought" would make alot more power than the other NA Camshafts all on an engine Dyno. They were DEAD wrong. BOTH NA Camshafts made more power than the NOS "Specific Grind" camshaft ever thought about making. This was with a 200 Shot of NOS IIRC.
So moral of the story is just because it is supposed to make more power because the box says "NOS or TURBO CAM" specific does not mean that it always will!!