I'm running a carter AFB #9638S on my Fury's 360 and since I have the carb the idle quality hasn't been great and vacuum signal at idle is something between 14" and 16".
I recently did a valve job, inspected engine, change ignition from aftermarket ICM and distributor to a mopar ICM and distributor but the idle problem hasn't change.
When I bought the carb it came with the stock 120-398 (.98) jet and 16-695 meetering rod and I've tried with differents combinations without success.
Today replaced the main jets with 120-377 (.77) and 120-383 (.83) with differents meetering rods but the idle quality doesn't improve, but, If I start the car without meetering rods in carb the idle changes and is a lot better, smoother and I got 19" of vacuum! (never had so much vacuum with this carb), I suspect my problem is due to rich mixture at idling because If I create a vacuum leak with the meetering rods in carb the idle is great again (not much better but better than without the leak).
I don't know what else should I try, the smallest jet I have in my strip kit is a 120-371 (.71) and even with the 120-377 if I hit the throttle the engine stalls i think due to lean condition
I recently did a valve job, inspected engine, change ignition from aftermarket ICM and distributor to a mopar ICM and distributor but the idle problem hasn't change.
When I bought the carb it came with the stock 120-398 (.98) jet and 16-695 meetering rod and I've tried with differents combinations without success.
Today replaced the main jets with 120-377 (.77) and 120-383 (.83) with differents meetering rods but the idle quality doesn't improve, but, If I start the car without meetering rods in carb the idle changes and is a lot better, smoother and I got 19" of vacuum! (never had so much vacuum with this carb), I suspect my problem is due to rich mixture at idling because If I create a vacuum leak with the meetering rods in carb the idle is great again (not much better but better than without the leak).
I don't know what else should I try, the smallest jet I have in my strip kit is a 120-371 (.71) and even with the 120-377 if I hit the throttle the engine stalls i think due to lean condition
