94 Passat GlX

I am having problems please Help. The oil pump shaft seized and broke I replaced and set timing. The car set for 4 months. I got if fixed and it runs great as long as I don't go full throttle as soon as I do it seems like its hesitating. Anyone got any Ideas?

My guess since it sat and the cars age is fuel injectors and throttle body. Get a fuel injection & throttle body cleaning and it should improve your top end.