associated weights.. you can get 1 oz in front of the tranny. stack 1/2 oz on top of another, turn sideways and it will fit between tranny and antisquat/rearbrace. (the tranny screws that come down on the top will hit the weight slightly. try a shorter screw. I used the stock ones and it slightly dented the weights but i think that might have held them in place better. Then in the rear pockets of the tub you can stack up how many you wish.
front weights in the bulkhead area and possibly in the steering area or the 2 pockets around there. just depends on how it feels when you drive it.
the 1 oz alone in the rear dropped my lap times by 1-1.5 seconds on the Litchfield Michigan track. Black farm dirt, loaaaamy.