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Message: <blockquote data-quote="teejay" data-source="post: 292941" data-attributes="member: 51">k-jet system may not be fully compatible with the newer motronic sstem due to the various vaccum points that needed be tapped for the k-jet to work proper. k-jet was bascially an advance carburated system develop to be used in the injection system. motronic controls bascially everything in a box while the earlier k-jet , l- jet had separate controls of iginition, iding, fueling, all individiually controlled and tweaked to ensure all systems matched, so a much more difficult system to tweak and stabilise compared to motronics to run the k-jet in the newer b25 blocks, you will need to look at the various input it needs to function, therefore putting in the motronics would be a far better bet, unless you have a genius mind like myself which can convert the newer b25 blocks to adapt to the l-jet system :rock:Sorry i cannot devuldge further information since i have long separated my knowledge on the l-jet systems. Also the -jets can be tweak manually to get more juice from the engine but the motronics need the DME chip to be changed/programmed.  i would advise you to abandon the k-jet unless you know a good mech who has competant knowledge in the -jet systems, as maintenance maybe a headache if problem does arise after engine has been installed  good luck</blockquote>