what are the sizes of the 4.5, 6, and 9lb pullies with a stock crank pullie? the one im running is sappose too be a 6lb but seems more like a 4.5 im only getting like 3lb at 3500-4k rpms..and the blower and everything seems too be functioning perfect.. but the pullie that came with the set up was sappose to be a 9lb and the one im running is about twice the size as it.. i wanna try out the 9lb one soon as i get my fuel demons lined out i figure it might make 6-8lb when said and done

 

2.70 Pulley 9 psi
2.93 Pulley 6 psi
3.12 Pulley 4.5 psi