I don't believe that you will find a 1970 L78 dual snorkel air cleaner for under $100 unless its the LT1 Z28 style. The L78 and LS6 types go for anywhere from $1500 for an unrestored one on up to $6000 for an NOS. There are people on this site that would buy 15 of them for a $100 dollars a pop. Good Luck on your search