- Nov 15, 2003
- 41
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Well I just recently finished installing my twisted wedge heads and typhoon intake manifold. Theres no leaks, smoking, pinging or popping, just one amazingly rough idle. Not that the rpms are jumping, their holding dead even at 800 rpms but the whole car shakes while just idling. I'm only reading about 12lbs of vacuum at idle...shouldn't I be seeing about 20lbs? I've checked every vacuum source I could imagine...any suggestions on that? Also my roller rockers seem a little noisy, is this normal? Could the vacuum leaks be causing the rough idle? or maybe the big intake valves have something to do with it? The shaking actually lessens when I rev it up. Any feedback is greatly appreciated!