magnum bore wear???

I never had a problem with lead. Although I never ate paint chips as a child...lol.

I used to mix leaded gas with the "mandatory" unleaded at the pump as long as it was available...early 80's if I recall.

I attribute the modern bore wear mainly to the port injection systems. Good metal composition/materials contributed to it also. I'm not sure about the late small block Chevy or LS style GM engines, but the Mopar Magnum & Ferd Windsor small blocks definitely held up to multiple street miles vs the old school carbed engines.