Random Problems

[Cyto]

Well.. I'm almost to the breaking point(JDM 1JZ Swap) lol

Here's the problem(s).

1. The stock BOV isn't releasing air like it did when I bought the car(no woosh). Had HG work by an old timer who's losing his skillzz so.. do the math.

2. Sometimes it feels like the car is missing, when the idle gets low, going up hills, overdrive kicks in(lowers the rpms). Which would all be classified as low RPM but I'm trying to draw a picture.
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Possible fixes I know of, and if I've tried.

1. Tear the timing cover off, and re-time the bastard.. If I do that, I might as well just replace the timing belt. (Have not tried)

2. Going over all the vacuum lines. (Done, did not take the time to check for leaks, just made sure they were hooked right.
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Does anyone know of any other possible causes?

Any help would be greatly appreciated.