Pump gas has its issues ,..depending on what part of the country you live. Most gas doesn’t retain its octane level for more than three weeks unless treated if exposed. Carb 660 91 always to be safe... EFI stockers 87 should work..but if it sits , aftermarket HP parts, heat ,large tires and high loads 91
Might be a wiser choice
07 owner built 693,11:1,CAMSHAW cylinder head design/Mega-flow porting & coatings,cust intake,ferrea+1 valves,dual springs,Dosdaytona FS cdi reprogrammed, welded cases,crankworks rod/crank,billet middle,fabtech LT, owner built bed delete,48HSR,cust web cam,CBR1000 cust exh,full cut Down sheave 12g rollers,HD spindles/tie rods,Digatron egt/wt/tach,XOG gps,welded front diff,Jazz race seats,CAMSHAW gusset, Ddaytona burn down breather Cust uni filter system, 50w hid.