never had an issue with comp stage 3 cams, my set up was properly tuned... loved the high rpm power from my n/a set up....but now i'm boosted so i'm on stock cams with livernois springs..
Do you have the stock bov still on it? I have had a few issues with mine so i added a tial 50 mm bov. But i have yet to remove the stock bov. It will be removed when i get my torque booster installed next month, i have a block off plate. Make sure yours is functioning correctly!