Greetings,

After 120,000 joyous and carefree miles it comes time to do some heavy lifting on my 92 M5.
Losing about a quart of oil every 1000 miles due to a cam tower leak...probably the right time to address it.

Questions:

1. Are there any cam upgrades it would make sense to do with the top of the motor off?
2. Any preventive maintenance it would make sense to do?

Thanks.