Barrysixpack

Has anyone installed a coil over shock system on a 1970, or similar model, Grand Prix? This modification is being considered to improve handling and would love to know thoughts or opinions on this type upgrade.

I am a senior citizen who purchased a 1970 Grand Prix new, kept it in very good condition, and passed it on to my son. It is all original except for the Jim Butler 455 engine. I am interested in Pontiacs, of which I have owned five owned the years.