Nitro,.. to put it in perspective. An 8000 HP T/F engine would only be 1200-1500 horse under gasoline. Heard that from a crew chief.. Or was it 1500-1800? I forget, but you get the picture of the volatility of the stuff.. I think the only guy, or one of the few here that actually run it is the Challenger member in Cinci. He has some really cool/expensive toys..