I have an 18 strip teflon 8-71 TBS I have used for many yrs[15] 446 wedge .630 112 lsa roller 109 ICL.I am working my way to getting back on the track and reduced the OD to calm thing down and put the exh to quiet things down.To check the boost I could try another gage but it is what it is.I will get to a test n tune soon I hope but I have ET street tires that should be good at lower boost that I was setting the blower at.I need to cert my belts,get slicks,cert my cage[10pt] and test driveing the car was setting the stage to get those to be sure I was ready.