Question concerning VTec solenoid

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Quick question..........just finished wiring my swap and ran it without the VTec solenoid wired in....she ran great! But when I added the VTec solenoid (positive signal) it would hit the setpoint and just bog down. I'm using a 5" Autometer monster tach and using the shift light signal to initiate the solenoid for the VTec. Is this normal or do I have the timing off just a hair? I had the setpoint for 4200rpm but the tach doesn't show just right and I think it needs calibrating. Idling it hits around 1100. Am I just set too low since the tach is off by a hair?

Thanks for the input!

Keep the faith!
 
nm......just figured it out.....dang that vtec does make a _slight_ difference when it kicks in. No wonder everyone likes those DOHC VTec's so much..... :D
 
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