Kangaroosa, Pozman,
Did you get knocked back based on compromise to structural integrity? I don't know if it would actually make a significant difference in stress on the rest of the car from having a 12A or 12B, especially if you had a ported, well tuned 12A compared to a stock N/A 13B. Haha guess no point being ambitious for the 20B!
If the rest of the car was modified to take the power, is it possible to find an engineer who would pass it? I was reading the thread about this stuff a while ago, but can't remember exactly what you guys were saying.
Have you seen the MAZOLA around? Do you know what engine he's running?
Cheers,
Shel