Any tips for removing stuck intake manifold? (Update...it worked)

I use some putty knives to slid between the intake and the head. This helps break the gasket loose. After you've managed to tap (using a hammer) the putty knives in there you can sometimes use a wide screwdriver, but be careful because a steel screwdriver can break off a piece of the aluminum manifold, it can also put a dent/scratch in the aluminum...so pick your spot in the heaviest part of the manifold. As you get more and more screwdrivers wedged in there it will eventually pop loose. The putty knives are the safest route because they usually won't scar the aluminum like a screwdriver will.

treblig