I'll check the compression first. I got 4 plugs that have foulers the other 2 are good. The engine was sitting for 2 years I got it from a guy down the road its a strong engine but the just knowing I have could plugs bothers me. Hopefully I just got to change valve seals. I got a intake manifold gasket I'm going to replace it when it warms up a little. Is it really that difficult to change the manifold gasket every thread I read it seems like a long process. Thanks for the help guys