104 octane for my 360 ?

If you dont have the compression needed to run the higher octane dont run it. I dont think you will see any diffrence you will be mostly just wasting your money. Premium 91 -93 octane pump gas is plenty for a 9.5-1 engine. Just cause you bump up the octane doesnt mean you will run quicker. I think you may have a little to much carb for your engine also.