cliffnotes: Froze the front of my car up crossing icy stream and now I get a rough idle (revs high then low, then high, then low) and stalls out when going slow and making a turn for example.
Well I decided to go up Gothic Rd. last friday in Crested Butte, CO. Left at 5am with trusty dog. Headed all the way up till you come to a river crossing. I've never been that far up, only biked 401 before and saw fresh tire tracks that didn't look to burly coming out the other side of this stream. It was also still a little dark and didn't look that intimidating. I decide to cross it and it instantly dropped me into water a foot to a foot and a half deep with thick ice.
I kind of panicked and was afraid to try and reverse out of it, I don't know why, so I just perserved on through. At the other side...I had to reverse about 7 times to get over the huge hump of ice but she finally made it. I left it on and drove it a little longer until it started to overheat. I then turned it off and preceded to pull 3" pieces of ice out of my grill. No damage to the radiator but it did freeze the front end of the car. Very cold morning. I took my dog on a hike up Maroon Bells East while waiting for it to cool down.
Preceded back over the stream and went home. Lesson learned, could have been way worse.

Now when I start it, there's a rough idle. Fine when driving but will stall out on slow turns or stops.
Checked the carb & vacuum leaks so far. Possible the water got in and did some damage but how to precede from here?
Thanks,
Mike