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Sorry to bring this thread back from the dead but had a question as to the difference between the Tial with a -2 in vacuum spring (that everyone seems to recommend) and the Vortech with the -17" vacuum (that everyone else seems to recommend).
I just installed the Vortech and I really love the sound when letting off a shift, but when cruising and not much gas on I get a bit of a quiet woosh as the valve is opening a little. I would say that's happening around -6" of vacuum to full open.
I'm wondering if I traded it out for the Tial with the -2" vacuum spring it would be much worse or better. Can't wrap my head around it....think because it's he first Monday after DST.
BTW, I have a VF 620 kit if that maters to anyone talking specifics.
How much different will they sound and act?
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