Did oct. booster cause my needle/seat? Do I need any oct. booster?

It seems like every 2000 miles or every two years I have to replace my needle & seat on Holley 600cfm double pumper. I started to think it might be the ethanol in today's gas. Today I went to refuel an added some "104 Oct. Booster" before filling like I usually do. As I was pouring it in I noticed that the bottle of the '104' bottle had this orange goop/syrup residue in it. WTF...I have 3 bottles and they too look the same. Is this residue getting in my tank and eventuallly clogging my needle & seat?[/I]
I am running a 273 Commando with 9.5-1 compression @ 285hp. I always use premium(93 oct.) but if she's not pinging/detonating do I really need any oct. booster. I'm thinking no, she's a cruiser not a race car.

Thx, ZooKypr