Rooster, to add to this, I blew a brake line once that wasn't tight enough. I think a good idea would be to mark the line with some paint or maybe a small tie wrap to see if it is slipping through the nut. Maybe this would catch a line slipping before disaster strikes.

8in is a good size for the motor since you you have to overdrive the tranny 2 to 1 to get it to live. For the tranny, Browning makes an adjustable pulley with a 5/8 bore and a max diameter of 4 3/4 in. I used this setup for 2 years with no issues. It makes for easy adjustability to tune for different tracks. I had about a 4 mph window of adjustment. It work great for me as our class was governed @ 3850 rpm.. As per the tranny I had problems with eating up the brass output bushings also until I filed 3 little notches in the thrust part of the bushings to let a little oil in. Had a little oil seepage but never lost another bushing. Hope this helps.

I wouldn't take the balls out. The camshaft is a pathway for pressurized oil. I think you woud loose oil pressure if you removed them. They won't hurt anything in there. Like Ryan said the spring that holds the compression release at cranking rpm doesn't like high rpm so it will likely come out in the first oil change. No big deal at all just makes it a little harder to start.

There is a spot on the carb to drill and tap for the idle screw. I ground the end of the throttle shaft that holds the throttle leaver on and then replaced it with the correct one. The massive size of this carb is worth trying to figure out how to mount it. I'm still learning about modifying this carb but am pretty happy with it so far. I haven't touch the pilot jets and only drilled the main jets to .067 in. This tractor runs pretty stout. It won the outlaw class at US Open and ran 2nd at the All American in the outlaw twin. This carb has amazing potential.

I have this carb on my WOO outlaw. I replace 2 HL380's And now I absolutely love this carb. It's on a pretty stout Vanny. I tried it right out of the box and it was ok but since then all I did was drill the main jets to .067 in. and filed the throttle shaft flat for a little more airflow. Did I say I LOVE this carb. I twist it to 10000 rpm all day long and it pulls like a mule. May have a little to do with the magic of a good set of Ryker cly heads.

The amount of rear tire stagger and too low of left rear tire pressure are your enemies for turning right.

The aluminum push rod is on the exhaust side in all the briggs parts list. I wonder if it has something to do with thermal expansion and a tight .004 valve lash.