Tracy,it is a solid roller cam,custom grind.I,ll have to ask about welding,but not sure on a billet peice?Also as I mentioned earlier,with my float being stuck and me not knowing til after driving to tech(was about 40* out with no choke)We,re suspicious of #2 main journal.Will know more when I get to actually sit down and talk with both the brothers and get there opinions,cause we don,t want this happening again.I feel it,s my fault for not changing the oil right away after finding the float stuck and dumping fuel down the intake.:violent1: