Edelbrock accelerater pump

Yeah I checked with the cover inverted. Multiple times. I'm pretty sure if I go slow it will increase as normal. Not 100% sure. Been too busy at work to mess with it. Either way I bought a new kit and accelerator pump and will leave it to soak maybe over night. But I've been hearing mixed reviews of barrymans chem dip. Followed by a long round of compressed air. Am I right about using the heavier step up springs for my 20 vacuum at idle in park and idle in gear?