Very low boost

[Frank4202]

Ok where to start?!?!

Mods:
Top swapped Impala with a 97 blower.
Yella Terra 1.9 ratio Rockers
L76 Valve Springs
Gen3 blower
WizAired CAI
PLOG
GMPP cat back
ZZP downpipe with cat
Lucas #42.5 injectors with connectors
Intense PCM
Autolite 104 spark plugs
ZZP 10.3mm spark plug wires
180° thermostat with gasket
Stock pulley

-Heres the story. Top swapped the car and everything is fine. However, the car is only making 3lbs of boost at WOT. First I zip tied the BBV down and car was making around 9lbs of boost but KR was 5-9*. So unzipped that. Next, I disconnected the BCS from the BBV and again the same. 9lbs of boost but crazy KR. So now I'm back to normal. Is there a connector that plugs into the BCS? I see nothing and it seems weird to me that theres this connector with nothing plugged into it. I gotta do something because the car still feels sooo slow but when it actually made the 9lbs, it actually felt fast. I wanna beat on it but cant

 

[Bio248]

are you running it off the PCM or vacuum only?

 

[Frank4202]

are you running it off the PCM or vacuum only?

You mean monitoring my boost level? I have a Aeroforce and boost gauge I'm using.

(Please bare with me if thats not the info your looking for)

 

[TheOtherNick]

He means do you have the selonoid hooked up to the pcm or just using the vac line.

 

[Bio248]

how is your BBV functioning. do you have the solenoid hooked into the wiring harness or are you just running it on vacuum?

 

[Frank4202]

Vacuum only. One end of the BCS goes to the BBV and the other to the T on the blower.

 

[98RegalGS]

Hi
Did u ever figure this problem out? My car is doing the same thing.

 

[Frank4202]

Nope, still low boost and when I do I make crazy KR. Im waiting to drop pullies and then get an actual tune.