Really! i have the keys on ratchets but they won't fit in beside the rubber portion of the manifolt puts it at an angle, i am pretty sure we have those on right, they only go on one way don't they? Also found if we slammed the carbs right into the boots then they locked up the throttle cables so we had to back them out a bit then button it down......good grief its a bloody manifold, what could we have done wrong?