Forged stock stroke cranks are available form DLS, TA Performance, Full Throttle, among others. Get on the phone and call them. A girdle is a nice addition, but end up costing more than a forged crank after all the intricate machine work is done. (to install it RIGHT) 130+ HP per spark plug is ALOT of power to control. FOr consistant high nines, I would suggest stepping up to a StageII block and use the 14 bolt heads form TA. Head gaskets on a 109 at that power level will be tuff to keep intact. Q16 fuel with a dual nozzle alky kit, too.