We have a lemons race this weekend and finished swapping over a z6 head onto our otherwise stock d16a6. -92 Z6 Head swap -RPM activated RPM controller wired to give + input to solenoid at 5000 RPMs PROBLEMS >>> -When the car is cold it idles and revs fine with excellent throttle response -When the car is operating temp. it idles fine but throttle response is very poor in low RPMs -At all times once the vtec controller activates our solenoid, the car bogs and RPMs drop below activation and shoot back to 5K activates and bogs (constant cycle) So my question are for this race that we have this weekend. -Can i run the car without vTec all weekend in worse case scenario? I assume yes -what would cause such a throtle response issue when the car is at operating temp Any and all help is appreciated; we just want to go out and race!!