I have seen 4 post in about 4 hundred threads I searched that stated that they had actually installed 3FE stock exhaust manifolds to a carbd'd 2F. No more elaborations to them than that, they were all buried under 2FE deets. I have a pretty good exhaust leak on several spots of my stock FJ6o manifold and would very much like to get rid of them. I can't spend 900 bucks on a Toyota manifold assy right now, and would rather not do headers. I could take in all the bits and pieces I have and get some new rings and springs and have a replacement stock fj60 manny machined/welded/helicoiled and otherwise rebuilt, but if the 62 manifolds will mate up to the 2F head and not interfere with the intakes mating to the head, I'd rather go that route. I know there will be a set of pipes needed to handle the dual outputs and new routing, and I'm fairly certain some grinding will need to be done on the bottom of the intake where it used to mate to the exhaust. I know that there was a toyta trails article about this, but I can't find anything else out on this from here. I can get the 3FE exhaust manifolds delivered no problem, but don't have a set nearby to just check it out. Thank You MUD.