I have to agree with Gentry. If you limit the series to just a steel block, a guy who may have a low buck aluminum motor can't run. This would be my recomendation:
1.Injector sleeves to 3/16 or ASCS intake gasket.
2.Aluminum motor guy will have to bolt on weight in the center of the car.
3. DT-3 or equivelent on RR
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