Hello my oily friends! This is my first post to this board. I am about to fire up a newly built performance Pontiac 455 street/ strip motor and have a few questions. What would be the best oil for startup and break-in for a roller cam motor? How quickly can I switch to synthetic if I decide to go in that direction (file fit moly rings)? Lastly, What do you think of running straight 30 wt oil (Schaeffers)? In the colder months, I was thinking about using a magnetic oil pan heater to get the oil up to a decent temp before starting the car. I was thinking that the stability of a straight weight oil would be ideal if you didn't have to contend with flow problems at low ambient temps. Would the use of a oil pan heater cause condensation to form and contaminate the oil? Thanks for your opinions.