Originally Posted by
blackpepper
Check your supercharger pulley gap had to chase down a low boost issue a few weeks go my 62mm stop hitting 19psi was only hitting 16 to 17 ,my pulley backplate was wore purchase a 61 set at factory gap 014 and all is good over 20 psi in third gear
Was your order of a 61mm pulley recent, and if so, what company did you go through to get it, If you don't mind me asking? Thank you.