Wire Brush Wheel on a High Speed Drill worked wonders on my 4 pots, paint stripper is u/s if its been on ages.
PS - care using them stud extractors, if they break flush and tight you'll never be able to drill them out, use the left handed fluted drill bit method with variable speed battery drill (in reverse of course) its safer.
If you're stuck, send me a PM?
Yer cheers for the advice, going to leave it up to my Dad, then if he breaks them, he can buy some more
Fixed the Fiat, just needed new spark plugs lol.
















