Da Groj

Is it acceptable to run two classes in an event with the same car? One run would be in Stock class with stock engine settings. Then, run in Modified with a 'computer tune.'

I am looking at getting a BSR Tuning Kit which allows you to switch from stock settings to modified settings. Thanks, Scott

It could, technically, be done, but not easily. And you'd have to pay two entry fees. And work assignments. Probably not worth it, for all parties involved.

If you are looking for a compare/contrast kinda thing, just register in the modified class, and run half your runs as "stock." That'd be a lot simpler.