Thanks for the info. Cam gears are the same deal on 250 engines. I didn't know that some type of fiber gear was used that far back. Are you still going to run 1.7 rockers? Do you know the duration at .050 for the stock cam? That is a lot of oil! Don't know how fast the drill was turning, but when we had a new Kenworth with too much oil I would pull the line for the oil psi gauge and have someone start the engine. A good rate of flow, 1/2 gallon in about 45 seconds with about a 1 foot spray. Way less than you have described! Are those stock pistons flat top? Hard to tell from the pics. Jay6155
