SBM Port Molds

It would depend on use, if You're stalling it at 5K, the fuel quality isn't as much of a concern. Hot regular street use/road course it could be a big plus. I'd love to see same-cam & carb back-to-back torque & bsfc curves.
I think this stuff becomes more important in highly competitive racing with strict rules, in a basic street strip car if you build a highly efficient 10’s car and I build an inefficient 10’s car in the end of the day we both only have a 10’s car. And I probably got there cheaper.