Plug is white, to light tan.
No aluminum balls.
Geared to get off corner, so turns pretty hard at end of straight.
Took off several teeth, no change in stutter. Rpm dropped. Lost corner advantage.
Bought this setup with a broken rod. Reassembled same basic combo.
Has high and low needles. Acts lean, unless high is 2 turns open. Low open about the same.
Cannot find a number on jet. Did not measure last time i had it apart.