I saw the SB TF heads and talked to their rep at the PRI show... He said they will be released approximately in May 2019 as there have been casting problems getting fixed. The exhaust ports were square and small ... instead of the more common factory design... puzzles me for exhaust gasket sealing.

Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!