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Old 07-12-2004 | 01:56 PM
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jharkin
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From: Holliston, MA
Default RE: OS 91 FX Tach readings

12x8 APC - 11,700 peak, idle around 2200-2300 after a gallon of break in.
- stock muffler, powermaster 15%, OS #8 plug, 75F and humid at around 500ft ASL.

This motor is the older style of remote needle and I do get some bubles, but it only seems to affect the midrange, idle and full blast are rock stable. I'm going to try the perry remote needle to fix the midrange.