Only if they are jetted right at low, mid, and top end. But they are more easily tuned with all their main, air correction, and other replaceable jets.
You can do the same to many other carbs (including "satan's carb), but these changes are usually a drilling, or reaming exercise, and if too much, a soldering and do over exercise.
Rochester Carburators-Doug Roe first printing 1973 (has more info on older rochester carb B's, 2-G's, 4 G's, H's etc.) fix 'em for more power, or for more economy-same book tells you how.
Last edited by preacher-no choir; 06/25/11 01:03 AM.