After having stage 1 revo two weeks ago i had my car on the rollers on sunday with disappointing results (see below). i have a bmc carbon airbox and forge dv and im pretty sure it should be making much more than what it has. the car itself seems to run fine with no boost leaks, hits 20psi.
i disconnected the maf sensor to check if it was causing problems but its fine, anyone able to suggest anything? im stuck as to what else to try.