No im not getting any less power, i dismantled the bov nothing is wrong in there, no that adaptor didnt come with the bov i made it, people wanted to charge me $130 for them to make it so i just did it myself cost me $5, and an hour of my time, the bov has 3 vacume house's coming out of it top, middle bottom, the bottom is for a boost gauge so i blocked it off the top is where i assume the Vacume house from the manifold goes (same house the stock one had) and the middle is hooked up to the same chamber i had blocked off.