Ive got an 87 YJ with a 350 in it. Was having cooling issues from the git go. Electric fans are not cheep and im the type of guy that likes to tinkersooo. From a jeep forum I got the info that an elctric fan from a crown vic. cop car is the best e/f on the market. You can get the wiring kit and sensor from summitt. It cools my YJ at an idle all day to no more then 160 degrees. 180 to 190 down the road or even creeping or crawlng hills. Also Think about some hood vents along the sides and in the middle of your hood just behind the carb.