Took my boat out last Friday and after a good 4700 to 5000rpm run @ 86MPH for about 2 to 3 min. I noticed oil spray all over my freshly polished valve covers and all over my headers and bilge interior. I have dual breathers(one on each side) towards the front and this is the first time they have done this to me. I am running a ZZ502 with aluminum marine heads and it is a full roller motor running 8.6:1. I watched the guages(oil temp,vac.,water temp.,oil pressure and the only indicater was the drop in the oil pressure.) but not a horrible drop just lower than normal @ idle. Do you think after that long run I may have aerated the oil enough and build too much crankcase pressure? Any ideas? I have about 60hrs on the motor. Would you guys maybe suggest a puke tank? Is there any plumbing diagrams out there for the puke tanks?:idea: