[HACKGT350]

yes i know the power valve is rated at what vacuum pressure its spring is rated at. as for stomping on the gas thats nothing to do with the power valve right away. the accelerator pump/sprayer needs to bridge the gap between the idle circuit and the power circuit. the acclerator pump, cam, and sprayer are what give you the umf when you smash the gas. it bridges the gap till the vacuum has dropped off enough for the power valve to open this way you dont get hesitation or bogging back firing all that good expensive noices. right now my car has a little hesitation because i have not bridged the gap enough. i either need to go with a bigger accelerator pump circuit or a power valve the opens with faster so i dont get that split second where the car holds back for a second. mine happens at about 3000rpm and then takes off like a bat out of hell because the power circuit is now completely open