I just got my motor back together and I'm having a few problems with it. Could you guys please help me troubleshoot?

1. The car is tuned to idle at ~950rpm's. Lately it has started idling at about 500. It will then make a single "knock" noise, like somebody knocking on a desk, and it will die. When I go to start it back up, it just cranks over and over and over unless I floor the gas pedal, at which point it starts right up.

2. I was driving down the road yesterday and white smoke started billowing out of my e-brake handle slot. It smelled just like graham crackers. My coolant is low and I have tranny fluid leaking all over the place. The smoke seemed to be coming from the back of the block. I checked the head-coolant lines and they seemed fine.

3. At about 55-60mph my car starts bucking like a wild bronco. Is this a tuning problem, or could it be related to something else?


Thanks!

 

Any ideas? Anybody? No?

Also, what kind of drain plugs are the same size as o2 bungs again?