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How many of you folks have done a dyno or street wide open test to see how much vacuum you have? After much thinking and research I`m thinking my 3.5 p/v COULD be closing at wot if I`m pullin more that a few inches of vacuum............Anyone?

if your pulling over 3.5" of vacuum at WOT you've got issues. 3.5" would indicate a very big restriction on the intake/carb. i'd look for fuel delivery problems.