I generally use fel-pro gaskets. The cost of head work depends on what your having done to them. Just having them decked or porting work. Machine shop work isnt the cheapest thing ever. When I had my heads decked, ported and polished it cost $1100 Just having the heads decked should run around $300-$400.
-1994 Trans Am Gt: caged, CC503, Garrett GT45, 6Lbs, 3.73
-1995 Trans Am: the next project
-2011 Camaro SS convertible: DD, stock and going to stay that way for a bit.