Has anyone had experience fitting Hedman shorty headers (PN# 68610) into their BBC Chevelle or Camino? I'm not sure if I should go with the full length or 3/4 Hedmans in my 1968 Camino 396. I'd like to achieve some extra ground clearance, which is the reason I am considering 3/4 length headers. Are there any fitment issues I should be aware of with these headers?