Join Date: Nov 2009
Location: The southern armpit of California
FWIW, I recently put in a reman Carter BBD. After tearing it apart and cleaning it due to dirt I reset the idle mix screws for highest/smoothest manifold vacuum, which was 21" Hg, and matched the vacuum the reman had set the crews for. Ran fine, except for periodic hesitation off near-idle, and the gas mileage was crap compared to the old Carter I had pulled. I was getting around 16 mpg with the old carb, and 13 mpg with the reman carb, driving city streets - same route every day. I figured it was running a little rich, causing the hesitation and eating up the fuel. Leaned out the mix a little, cured the hesitation and bumped the mpg back up to 15-16.