273 Supercharged...ITS HAPPENING PEOPLE!!
I have read in the past that the 904 has allowed an extra 10th plus. At the lower levels of the engines there behind, the mathematical equation doesn't seem to work out the same on every note able case, but there close to each other.
Working with what he has and keeping costs down. And I do believe that changing to a 904 will allow more power to the wheels but then there is the governing favtor(s) of costs, how deep is his pocket, his build, his way, as much as allowable it can go.
Thanks for sharing what you know. A truly helpful mention.