K kb3kth New member Sep 8, 2009 #1 i have a 92 cadillac deville with a 4.9 and i would like to know what can i do to get more gas millage and or more power. it has 93000 miles and gets 16mpg
i have a 92 cadillac deville with a 4.9 and i would like to know what can i do to get more gas millage and or more power. it has 93000 miles and gets 16mpg
