[psalt]

Hey Bill,

Sounds like your lambda SC is far from stock, digital WUR and crank fire ignition ? You are probably by yourself with that combo. No vacuum advance or retard unless you have a MAP sensor. If I read you correctly, you are using 30 BTDC timing after 3000 rpm which is 5 degrees more timing than stock. I would be using the highest octane fuel available and be listening and looking for signs of pinging. If you have good fuel and the motor does not run hot, you may be able to get away with it, but the small port SC is tuned for a low rpm torque boost and is very knock sensitive.

How did the pressure readings compare to the warm up curve in the factory manual ? The dwell meter will show you how much the system needs to alter the lower chamber pressure to get to closer to stoich at idle. Voltage at the O2 sensor will not give you the information you need to make mixture adjustments at the FD. If you still have the stock throttle switch, the system goes open loop and ignores the O2 sensor after 35 % throttle. What controls your digital WUR ?