Even more plug issues

[spursotexas]

What is the difference between the B8ES and the BR8ES. Also the diff in BR8EG and B8EG. I am currently running a B8ES in a 96' 360 MXC at 5000' and average temp is 80 degrees. I have a #7 slide, needle is a DE G #3 position with a 162 main and a 42 pilot with a reed spacer. It sounds lean but it's working pretty good. Any comments from the experts out there? :silly:

 

[biglou]

I believe the "R" indicates a resisitor plug. Click HERE for mucho information on spark plugs.:)