Don't know as I haven't really had it a drive. It's the landlords one. The plan is I tinker and fix it up and don't pay rent. So new battery is the first thing. I jumped it the other day and it was driving loads of power but loads of white smoke. That's what is making me thing gasket.
head gasket you mean ,white smoke can be water if it disappears quickly or unburnt fuel if it hangs about
If you're fixing it up and it's not running great then you might want to adjust the tappets before you replace the rocker cover gasket.