How are these guys going 10.70's @ 124mph with the limited rules, especially the .500 lift limit on the hyd. roller camshaft and the intake manifold limitations. I do not see any specs in the rules for compression ratio but they do limit the combustion chamber to 58cc minimum. There is also nothing about what type of fuel can be used. I'm guessing that these guys are running a ton of compression with a very trick .500 lift cam and race gas. Anyone have any ideas. I'm not a competitor in this class. But they run close to the times I'm running with a much less radical engine combination. I'm just curious as to how they are doing it. See the rule book below.
NMRA Pure Street rule book
NMRA Pure Street rule book