What is a good combo for turning high rpm?

Auto, That's kind of where I was going. The difference is with the work alreay put in a Demon already. There's no way I could sleep at night putting a SB2 or LS powerplant in it. If I had a Mustang, or a last gen Camaro I could. But there comes the choice of do I want to have the easiest path to winning, or do I like my car and want to accept the challenge of making something that is hard to make competitive a winner. Looking at what has been done, the racing budget is not the single detrmining influence here. I know your answer to that question...and I admire it...lol.