HH Stage 3 Heads 6 Jul, 2017 in Head Hoggers tagged harley engine kits / harley engine machining / harley engine performance / harley head porting / harley service / Head Hoggers / M8 kits / motorcycle mobile dyno tuning by headhoggers This kit is getting our stage 3 heads, our CP 98″ pistons, our bore and hone, retro cam setup using woods TW7HR cams, and HD 44mm CV carb. This should be a fun setup!!