Well I got the exhaust tube out of the head (thanks harold and roger) now I'm looking at the manifolds and discovered that they are 140 manifolds. I'm assuming that that is the reason the donut blew and the exhaust leak ate the side of the exhaust tube off since I think the 140 manifolds have larger dia. also everything ive read said to tap the manifolds off with a rubber mallet and these just fell off. now I assume my only choise is to ditch the 140 manifolds and replace them with the correct 110 manifolds but I would like to still run a dual exhaust system. Is that possible? any suggestions on the parts I need to do it with is appreciated. Thanks all Mike.

No problem! get the 110 manifolds...the Vendors all have the correct "U" pipes for 110 duals..