So what I can't ask a simple question? 15min run times with a big block 5 port engine that has been cut sounds a little suspect to me. I don't care who made or modded the engine. I'm not tryin to stir anything up. The comments made afterwards is what does it. I'm called stupid because I know better. Any one with basic knowledge of a combustable engine knows you can't have power, speed and great fuel milage. You have to give up one for the other. Come on a 3 port stock .12 don't get that kind of run time. A statement like this is supposed to go unquestioned. I just asked for proof. Since you got hit with a complaint about my question then I got my answer. Thanks.