So I have a '82 fj60 that has had manifold and carb issues since I purchased it. I have pulled the Holly carb off and installed a Weber 2 barrel, pulled off the manifold to find a huge crack in the intake and purchased a used one. I installed the new manifold using a reflex gasket and put the weber back on. I'm still having problems overheating. My new thought is to do a whole engine swap. I would like to get more mpg and use my 60 as a daily driver, city and hwy. I was looking at the 3F-EFI from Cruiserparts. I just wanted some opinions or experiences for this swap. How hard of a job is it and what results am I to expect?