looking for some help/advice!!! i have one of the first version 3 port r spec engines and have had some tuning issues as of late. mainly the dreaded lean bog and all around just lacking power bottom and top. now yesterday i had several veteran tuners even try tuning it including someone who was familiar w/ GO engines w/ no luck. ive tried the base settings of flush on hsn and 2.5 turns in from flush on the lsn and using a OS P3 plug and Dyn 086 pipe. today i removed the hsn and lsn and found the small orings torn up some so they need replaced but cant find them anywhere online

and i guess i need to get one of the newer lsn to try also. anyone know where i can get some new orings and the newer needle to try?