I had a .6 jet right before the TB and switched it out with a .7 jet. I have now plumbed the .6 jet pre compressor but it is not in use yet.
My setup was a shurflo pump with a return line and valve set to bleed off just enough psi to keep the pump from switching on and off, an inline solenoid and an HSV. The new setup for the time being(my HSV is out of commision right now) is the shurflo with the switch bypassed, solenoid and pressure switch. the pump fires at the same time the solenoid opens.
These changes caused my ecu to pull 4 deg in the 4000 rpm range.
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