I switched to E85 years ago, summer/winter blends vary & summit sells a tester for around 10 bucks if your getting from pump, also use s.s. fuel filters, (peeps forget to change out there fuel filters, e85 eats paper, glue, & cheap rubber fuel lines) & using the Lucas oil additive really helps with the corrosion.... I wonder has anyone tried adding that dry gas stuff by chance? May help with the moisture issue?? I loaded a couple pics, inside after a season & the dual Dom set up on my 8/71