alright, im from the 5.0 forums but im rebuilding a 66 mustang for my dads friend. we pulled the heads off and got everything out of the engine bay except for the block to clean it and paint it. stock motor and stock heads i believe. the car has never been run on unleaded gas. its been sitting in his garage for the past 15 yrs and sat in his garage at his last house for about 8. the last time this motor ran was sometime in the 70's. its only got about 7k miles on it because he rebuilt it in high school. the motor turns over easily by hand and everything looks good. im taking the heads to the machine shop in a week or so when i get a chance and im just wondering, what needs to be done so that he can run unleaded gas. also, the heads have adjustable rocker arms on them and he doesnt want to deal with those anymore and wants to know if he can switch to a pedestal mount. money is no object to this guy so let me know what has to be done. thanks for any help and sorry for the long post