Oleblue is not running very well.( acts like a burnt valve) I couldn't figure out the problem, so I took it to a shop and they said the valve guides were bad. I want to change the 487 heads and install a better cam. My Dad has a set of heads, He will give me. Casting numbers are 10110810, Mortec shows 91+up Gen.1 65cc chambers. You folks know anything bout'em? bolt right up?
my block is original. Thanks
