What are most Hemi stock engine owners doing with their vacuum advance, running it ported, running it on a manifold vacuum source, or plugging it off?
It looks like stock must have been ported and connected to the back of one of the carbs. It looks like there are some low ports on the right front of the carb that are probably manifold vacuum if the bolt is removed and a threaded nipple installed. I normally like to run full time vacuum advance to smooth out and strengthen the idle and help the engine run a little cooler. But I have the distributor set up with an FBO mechanical advance limiter plate in order to increase initial timing so it may not matter much. Running manifold advance on my 440 has been working well.
It looks like stock must have been ported and connected to the back of one of the carbs. It looks like there are some low ports on the right front of the carb that are probably manifold vacuum if the bolt is removed and a threaded nipple installed. I normally like to run full time vacuum advance to smooth out and strengthen the idle and help the engine run a little cooler. But I have the distributor set up with an FBO mechanical advance limiter plate in order to increase initial timing so it may not matter much. Running manifold advance on my 440 has been working well.