Hey guys I've got a problem that hopefully one you guys could help me with. I had a c&l 76mm on my car calibrated for 19's. I have a trickflow stage 1 cam, trickflow street heat , and all the other little bolt ons like a throttle body and such. My problem is when I had the meter on there it took my car a while to warm up an it would tach kinda slow, and when you were driving it , the car would lag untill about 3500 then it would open up, it wouldnt lag bad but enough to feel. Well last night I put my stock meter on and my car tachs fine and runs a good bit better, my question is why would a 76mm not be better for a car than a 55. Any help would be greatly appreciated. And also I was wondering if you guys had a clue to why my car runs so rich wot. and taching it up. thanks alot.