It should not rev harder at full throttle with less shims.
Are you sure the body you got was the same as the body you had.
There are 2 different rotators, one with long fingers and one with shorter ones. Should get them as a pair.
Also mixing up the springs and diaphragms can make a difference.
I actually preffer to start with a full complete carb. Clean it out and if it hasnt been bodged up, its usually all good. Sorta like a matched set.
The other thing is the three legged disc, if it is not loose in the channels it will hang up an hold full throttle.
Cheers, Bob.
