1/2 the vacuum on a PV is the standard. Even Holley states that on their videos and tech support. I had a 6.5 PV in it originally and it would bog off the line, now it doesn't. The only issue now is the idle. There is a big difference in the idle between P or N and in drive.
Hmmmmm, didn't check that, but when I mash the gas peddle, it launches.