Power Valve Selection

Short version.

Clean up the idle and off-idle.

• Try another 2* or 3* initial advance
• This should allow slightly less primary transfer slot exposure. Then trim the idle mix with the idle mix screws. In neutral, run in 'til slight drop in rpm or vac, then open up 1/8 to 1/4 turn. (It needs to be richer in gear than when turning with no load).