I know everyone on here does not have the dual carbs but this is a general question for all the experts.

I have the same compresion as jeff and MajorEcho and the same cams as Jeff.

At the present I am way above thier main sizes and clip position but yet might plug is GREYISH/WHITE.

Elliott told me NOT to go by plug color but the color of the carbon on the inside of my exhaust.

Anyone agree/disagre with that?

 

Wouldn't a dyno give you a air/fuel mixture reading. It should atleast give you some re-assurance about plug reading.

Biggerisbetter.

 

What mains are you running now?(when warmed up)Are you getting a popping sound when you let off the throttle?

The plug color can be deceiving..I am amazed at the color differance between both plugs,then different fuels will throw ya off too.

I have had my best luck at night...dragging the hill..I just keep going fatter on the main jets untill the head pipes stop glowing...works for me
Jeff

 

I am going to put it on the dyno today. I don't know how much I'll learn cause it's too hot here (108) to tune properly, so I am going to just make one run and see what kinda # I get and what the curve looks like.

 

Al - call me and let me know what's going on! If you want to swing by SLC while your in UT I'll be happy to give yo a hand.