If Tim wouldn't have mentioned that BM block leaking all over the place and some slitting up the middle my choice would be much better. I know Tim has his own cnc programs for these heads too. Who do you sells a better head to better match our combos?
I have been told Hemi's are good on good pump gas to 11.5:1. I'm doing 12:1 and mix a little Dragon fuel in as i do with my 511 wedge.
