To boost reference the power valve you need to literally disassemble it and reassemble it backwards with the spring moving it on the other side. Its kind of weird sounding and i dont have a pic of what i did, and then you also block off the lower vacuum port in the powervalve cavity. Then i drilled a 1/4" hole through the side of the carb into the dame cavity and inserted a tube that goes to the caeb bonnet, so when boost pressure overcomes the spring, it opens the valve. Theres also someone who makes the valves for $35 on the turboforums but i forget who. Its not a bad deal though.
