That would make sense and I somewhat figured it was a motor that fit the rule book for that class. My motor was literally pulled from a 1971 Station Wagon and freshened with new bearings, new gaskets and a small cam which I purchased from Greg Gessler. Other than that ALL the factory parts & pcs including the stock bore 1971 Pistons and non stage 1 heads are all being re-used. I simply didn't have 10 - 12k laying around for a ported - high compression stock appearing motor so we threw this motor together to finally get the car on the road and to the track. Now my plan is to have some fun with it and see what we can accomplish with a truly stock motor until the money is there to throw at my other motor. It will run 12's - just not sure how far into the 12's we can get but I'm up for the challenge! 11's is still pretty impressive even for a "Pure Stock Legal" motor! .