Little 120r26 Oct, 2018 in Head Hoggers tagged 120r setup / custom cp pistons / engine building. / haley horsepower / harlay head porting / harley 4 valve porting / harley big horsepower / harley big inch kits / harley bore and hone / harley case service / harley cylinder boring / harley engine machining / Harley flywheel rebuilding / harley machine shop / Head Hoggers / motorcycle mobile dyno by headhoggers (updated 1869 days ago) Just another 120r going together. Should be a pretty nice build. TW-408 cams and a little head work. Should be on dyno little later today if all goes well and if weather cooperates lol