your likely to get a lot of different opinions on this one. I typically use Valvoline VR-1 with an additional additive. Your spring pressures are probably low compared to a high lift /duration cam so that will help as well. Get it up to 2K as quickly as possible, set the timing so it sounds good and keep a close eye on the temp. depending on ambient temps It may help to have a good sized fan and a hose ready if needed to keep the temp under control. Give it a good 20 minutes or more.