I've been researching cams and thinking of HKS 272's or FP2's and I've heard that the FP2's were causing some cars to stall after the engine revs down or it will idle real low. Did you/do you have this problem? I've read that the FP2's are supposed to have a better idle and a better top end than the HKS's but the trade-off may be less low end than the HKS's which doesn't really bother me, just wanted to see what your or anybody else's with these cams experiences were.