Kirk,
the Freeze Man has got it right!
I readjusted my seat as it was too far back-that’s why I had push problems all last year. What a pain it took patience and alot of time. Be care full the left seat lip is suspose to be 3/8″ closer to the front frame rail than the right lip. The idea of drilling a series of holes to adjust at the track is what I did also.
While your at it drill holes for attaching wts.–Top left rear of seat; left side of seat; lower left side of seat; center front under seat; left and right front lips of seat. Have your drilled bolts, nuts and washers, clips ready–~3 sets. Wts in spare parts: 2#, 5#, 10# (2 of each)
Remember what Dog said at the chassis seminar: your seat should look like swiss cheese–the seat one of the few Major tunning devices on a kart-it will radically change the kart.
On my CRG they tell me to keep rear crash bar tight. Diff karts diff specs.