I have both a 1250 gas carb and an 1150 alcohol carb for my 572 so yesterday I welded in fittings for both egt’s and O2 sensor and will hook both up to my RacePak. You just have to set the channel on the O2 sensor to the fuel you are running. I welded my egt fitting 1 1/4 inches away from the flange like I did on my small block Duster.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time