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dap930 dap930 is offline
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Join Date: Dec 2011
Location: Virginia Beach, VA
Posts: 418

As Tippy said, you will want to be richer than 14.7 at idle. Something like 13.5 - 13.8. The engine will run cooler at idle with a richer AFR. What is your timing at idle with the distributor. You need to be 10 to 12*. Too much advance at idle can cause to the idle to hunt. Does your MSD retard the spark with increasing boost?
1977 930 Slant, MS3 EFI, Carrera intake, Twin plug, Powerhaus headers, Magnaflow muffler, Garretson intercooler, GTX3071R
Old 03-14-2016, 09:34 AM
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