What are the make and number of the unshrouded plugs??

 

TIA,

Bernie

 

I’m using NGK B9EGV for both leading and trailing; recommended to me by Paul Yaw a few years ago. 

Ed; just guessing, but I think that Paul Yaw link you referenced is from about 1999.

 

There were a couple of times during the dyno runs that the engine got very flooded, but then started easily when we got the conditions corrected.

 

Al