I had my cylinder bored, an aggressive but still reliable port job for drag/trail riding, head cut for o rings and machined to correct squish, carb bored from stock 38mm to 41.5mm. All of this cost me $435 and took 2.5 months I also bought a new wiseco to match the bore and 99rm wrist pin bearing an billet thrust washers. That was $160 for everything. And I'm not bashing MHR I'm simply sharing my experience up until about 2 weeks ago communication was great however, eta on completetion was as elusive as the road runner through out the entire 2.5 months.