I have a 1972 Datsun Z and am transplanting an SBC into it. I thought I could run in Street Modified but it says that the engine must match the car and since Datsun and Chevrolet don't I can't run it in that class, which is BS in my opinion because it gives the example of an Eclipse being able to run a Mitsu or Chrysler motor so they can run a 426 HEMI but I cant have a 350. So with that motor would I have to run in Prepared or Modified or is their a way to get the car approved for the Street Modified class?