If anyone is still interested:

 

1.  Accuracy of LSE MAP.  With my altimeter set to zero MSL, it read 29.3", With the RMI microencoder set to zero MSL, it read 29.32", the VM EPI 800 read 29.2" and the LSE read 29.14".  Remember that the VM and LSE sensors are absolute pressure sensors.

 

2. At rest, Master switch on and Ignition (or is that Eggnition) sw on "Both", the LSE RPM display read 80.  After I pulled out the VM circuit breaker, the LSE RPM read zero.

 

I reset the timing sensors to retard 5 degrees after TDC and got the following results:

 

VM -  1100 RPM, 10" MAP

LSE - 1122 RPM, 10.3" MAP, L=39.5, R=39.6, No true timing numbers could be read at that low and RPM.  If the retard was correct, the true timing would be 35 BTDC.

 

VN -  1700 RPM, 14.4" MAP

LSE - 1690 RPM, 14.4" MAP, L=37.5, R=37.2, True timing was 32.5 BTDC. 

 

This device, along with goggles, an insulated one piece suit and a timing light got the true data.