Tunnel Ram Tune

Update: I haven’t been able to plot the timing curve yet, but I have put about 60 miles of in town/county road cruising on it with a couple of WOT runs. (Secondaries still disconnected) One roll into wot and one stab to wot. It’s running extremely well! Afr shows fat (12.0) at under 35mph, and 14+ above 35 at any cruise speed. If I stab the throttle to wot it’s showing 12.5ish and if I roll in slowly it gets pretty lean. Will probably put the 10.5 PV back in eventually. I’ve got a couple of out of town cruise in events I’m planning to attend over the next couple of weeks so I’m going to leave it alone and continue to monitor and note any new developments. I’m really happy with the way it’s running. Here is one of the plugs @j par after the 60 miles. I messed up the electrode taking it apart.


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That’s lean at WOT.