u/Prior_Disaster4368

I'm going to look at this car on monday, it looks very clean from pictures, but one thing I'm concerned about is the type of fuel, since the low compression version of the 394 is designed to run on 87 octane. Where I live the lowest purchasable non-enthonal fuel is 91 octane. Is it safe to run a higher octane? Or will it potentially cause issues down the road?