[68350]

Ok so before i go tearing into my engine and see what the intake manifold gaskets look like, i wanted to reach out for advice.

I was out for a drive here a few months ago. Had ran perfectly fine this year until this drive. About half way through the drive, once i slowed down for a town, i noticed my idle on my 383 was way higher than normal (usually around 750, probably is around 1500 now). I thought maybe the carb was just sticky from sitting so i continued on with the drive (about 100 miles round trip). At the point of hearing/feeling the faster engine idle, it started to sound like it almost had a miss. But seemed to run better if you got on the throttle. Everything to me points towards a vacuum leak that randomly started while driving down the highway. So tonight i pulled the quick fuel carb and replaced the carb to manifold gasket thinking that was the problem. I also checked the vacuum port caps on the carb, as well as the power brake booster vacuum line. Everything looked good to me. Once i had the new carb to intake gasket installed, its actually idling even higher now. When revved up the rpms come down pretty slow as well. So im thinking now that its probably the intake manifold gaskets.

Anyone have any other advice for checking things before i go through the work of pulling the intake? I did make sure all the bolts on the intake were still torqued, had one that required maybe half a turn.