Ok I recently completed a B18B swap into my '92 LS, it seems to run nicely except that under hard acceleration it pulls to the left, the idle seems to be too high (about 1000rpms), and the tach jumps all over the place, its constantly fluctuating and when I'm at a dead stop it revs on its own going back and forth from 1k-2k rpms. As it revs here the car lurches with the revs. The biggest problem that I know of is that two of the three bolts holding the downpipe to the header are broken off and I have a small leak in my radiator (I think the radiator leak may be a loose hose). The car is an automatic and, other than the engine and new brake kits, stock. Any info would be appreciated, thanx.