Hey guys... 350 sbc with stock quadrajet carb. It is blowing white smoke (or maybe water vapor) out the exhaust, even when warmed up. Doesn't smell like anti freeze. Also has been running rough, vibrating when accelerating, and has a lack of power. Some days, it runs great though... As im driving, I feel the vibrations kind of 'fade away' as im accelerating, almost as though something is.... Loosening up. But it's getting more common where it just runs like crap for a whole drive, and continues to blow smoke when I reach my destination. Thanx guys!

 

We need more information to really tell cause with what u told it could be alot of things wrong with your car. Smoking? Check all your fluids and see if any of them are abnormally low to see if its being burned up. Lemme know, the shaking it could be the actuall distributor going bad an could cause the shaking when idle and running like crap. Just give us a bit more details