Hello all,
New member to the forum but not a first time R owner. I currently have a 89' with a CT310 head and a pro-x 27cc dome and 180lb of compression. My carb is either a 38 or 39, not sure which one. I am trying to find out what fuel to run. I was told 100 octane or mix of 93 and 110. I can get 91 here but not 93. Could I run 110 or do I need to do something else? Thank you all!