[guitarman]

That sounds right from memory, I've used NGK and Marelli plugs on my 164 and found em to be good. Champion are not highly recommended...
The little green spark plug company are a good source, expensive but they have the works. As always, use a Volvo branded oil filter with the non return valve, a good 20/50 oil, decent air filter, used to be common on ebay. I avoid any kind of 'Intermotor' or similar points, condensers or rotor arms; as with most Chinese junk they don't last five minutes. Bosch parts can be found, I got mine from the States. Gates do decent belts for the old Volvos, hoses are very simple and turn up on ebay regularly too.