fiberglass bumpers yes / no
It's just funny to me how some people will calculate cam specs forever but put very little thought into how to properly lighten their car. One real advantage that a body had back in the day even Against The Heavy Hitters was its weight. That being said my car spends most of its time on the street and with all the distracted drivers these days I just don't think a fiberglass bumper is worth it for me.