470 BB race motor. Oiling mods?

grooving the #4 cam journal, not one of the greatest ideas some one came up with. this might be ok on any cam but a roller or a high spring pressure solid. it cost way to much compared to the way I do it.(I didn't come up with this idea) years back I had a roller cam with the #4 journal grooved and after I took the motor down for a rebuild the cam bearing was all messed up from that groove. so never again, not the smartest mod. I don't do any of the lifter oil gallery mods the article mentions, roller lifters cost too much. the enlarging and grinding the 90* turns is an excellent idea as is the drilling of the main feeds. use an oil pump that pumps more than enough oil, remember oil is your friend. class racing is a whole different deal so don't get caught up in that!