9mm to 7mm conversion
I also cut down the sleeve nut 0.030" to tighten up the clearance of the step on the nozzle shank, I will send 0.090" washers to compensate and keep the installed height the same.
put them and wow i got my hp back and then some and they are fairly clean burning too still have a real slight pop it needs to be tuned but the major pop noise is gone i would recomend this service to any one and dealing with weston was great on time service and he kept me informed of the progress thank you for your services
Brice
Brice





