I have a 65' CJ5 with the 134 sewing machine motor. lol I am actually going to challenge myself on this project. I am wanting to know if there is anyway I could get gas mileage out of my current engine. I am wanting to us it as a work driver and weekend warrior of course. I want some gas mileage though. I thought about starting with a newer 2.5 but they dont get any mileage stock either. lemme know if anybody has any suggestions. thanks

'96 Jeep XJ
'65 Jeep CJ5
'87 Dodge Raider
'79 Plymouth Trailduster (Ramcharger)