When you get it running do a compression check after you shut it off pull out number 1 plug since its easy to get to..You can pick.up a compression tester fairly reasonable...That will tell the tale of what gas to run..Remember..Aluminum heads let's you get by with more compression and lower octane as cast iron does...I'd say anything under 190 you can get by with 93..Do you have an airport close to where you live?..If so you can pick up some Av gas..I'd definitely fire it up and break it in on a higher octane fuel such as Av gas which is plenty enough octane around 100 I believe it is..That would insure that while you're breaking it in and leaning it out you'll have sufficient octane..Remember also that when you first fire it up have your timing light handy and set the timing somewhere around 13-14 initial timing and 34 advanced..
