Violent Take-Off Shudder

Ok guys, life got in the way but I finally looked over the U joint angles. All was well, about 3 deg on each end. Turns out the shudder was a combination of cam overlap, carb settings, and rear gear. Swapped a 3.91 in (3:23 orig) and it was pretty much fixed. Reset the idle screws and now it’s back to like new. Thanks for all the help!