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I had the same problem when I changed to a bigger cam. The vacuum dropped and the tranny thought I was going faster than I was.
I turned the modulator adjustment screw (inside the vacuum hose connection) in about 4 turns (mine was all the way out) and now it winds out nice and long.
My guess is the modulator diaphragm spring just needs to be torqued down a little bit.
I turned the modulator adjustment screw (inside the vacuum hose connection) in about 4 turns (mine was all the way out) and now it winds out nice and long.
My guess is the modulator diaphragm spring just needs to be torqued down a little bit.