Been runnin the 100 off and on for years and even 91 w/no issues at least cruising at 12.1.1 comp. You can 50/50 mix the leaded as I did for years if there`s no 100 available..... thumbs


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....