Thanks Jon - I figured there were limitations on the engine components. It would be interesting to see how much it slows with legal N/TF parts. Conversely, how much quicker would the N/TF cars run with their engine?
One thing it does show me is you can put up big numbers without a long wheelbase chassis. That brings to mind my past attempt at running my 243 ci altered as a D/Econo Dragster. The next year I did that successfully the IHRA mandated /ED rails had to be longer than 125", effectively outlawing altereds running in a dragster class.