dont shave heads or deck block less thay need it then just do the minimum to clean them up! gonna want invest in forged pistons figured to 7ish to 1 compression! as mentioned above need a cam designed for super charging! what type charger you thinking? and you going blow threw carb or some type of efi??? boost levels? stock /6 take 8 to 10 pounds and live a lil while but sooner or later youll be buying forged slugs for sure!