Ok, I understand the basics, oil pressure fed injectors off a secondary oil pump etc.... Oh, and who is the fool that thought wiring harness's in valve covers was cool? Anyway, here's what it does. 90% of the time, you start this thing it runs on 4, 5 or 6 cly's for about a minute. This is hot, cold or otherwise. Fresh filters, purged, and various cleaners added. Once it smooths out, runs fine. Not low on oil <duh> and otherwise seems ok. What the heck is cusing this, bad injectors, secondary oil pump weak what?