good idea in getting the servo away from the engine(imo) i haven't done it, but with careful lay out you should have no problems. things i would do, or be on the look out for.....in routing the control cable- have the minum amount of bends in it(some are unaviodable, of course-but keep 'em gentle)...i'd place a vacume resivor tank close to the servo and with a check valve installed...i would use the supplyed vacume tubing from the tank to the servo, but the run from vacume sorce to the tank i would up the size. i have installed a vacume res tank and just used a 1/2 liter water bottle(plastic, like used in nagalen stuff) to it i installed the fittings in the bottle's cap-sealed it when closing up the tank assmbly- i have keeped an eye on it and have never seen any signs that it wasn't up to the task.