I believe your Rochester is leaking/seeping because of a warped air horn and this condition can and will cause you to lose vacuum and in turn this loss of vacuum can cause your power piston to fail and make your carburetor run very rich (with no cure). If you want to switch to a Carter, I have one which was rebuilt before I got it and never used. Look in the "parts for sale" section. It is one of two models Carter made specifically for your engine. On the other hand if you want to straighten it, last summer I posted tons of information and images on how to do that. Good luck.
