Originally Posted by SS496 (Post 4701119)

Adjust the idle mixture using the same method.....but in gear

Originally Posted by SS496 (Post 4701119)

Adjust the idle mixture using the same method.....but in gear

Originally Posted by bck (Post 4700998)

Running a Victor intake with a 1050 4500 and a 1 inch super sucker spacer on a 540. Vacuum signal at the carb is pretty weak at idle. Removing the spacer made a bit of an improvement but not enough. Maybe a 4 hole spacer might give the carb a better signal than no spacer? Any other ideas? Just trying to get the in gear idle a little better and not be overly rich to keep it running.

Originally Posted by fbc25el (Post 4701135)

If your metering blocks have the idle feed restrictor " IFR " in the upper position the overlap from the cam cause a problem with the fuel flow. The IFR should be in the lower position. If you go to RACINGFUELSYSYEMS web site that pretty well explains it.