I have to run my 450 DSMs at -20 to get the car not to "miss" on the VAFC Hack. Does anyone think cleaning might solve this problem of not flowing enough fuel. BTW, anything below -20 and I spark knock. Please help, need advice.

 

Perhaps giving the specifics of your setup will help!
You are welcome to try my set to see if they help.

 

how much boost are you running? won't going above -30 trip the cel? maybe you can turn up the fuel pressure.

 

...also interested.