For everyone that promotes the 741 cam for a GenIV which the old # is 139741 (which has been discontinued)emphasized to ensure that it comes in the 8620 billet which is depicted by its copper color. The new # is 139021.In order to get the new cam 021in the copper colored billet it has to special ordered with a 2 week turn around. My friend is tryng to complete my motors this week, Does anyone know where I can purchase the copper colered cams with the copper color.
Thank's for your help

I just went thru this and if my memory serves me correctly the 139021 is 234/242 vs the old 139741 236/244.
Dave