[uneasyrider]

E.R., kyle_blake, GJN, and Geoff have very good suggestions. All of those above things can add up to a car that ran better over all stock than after the hop up. It is a VERY common problem. The thing is it is recoverable but it means working back through your combo with the above advice and sorting it out. When it's sorted out it will be faster than the original combo I'm sure. My first car was a 1964 Chevy 3/4 ton PU with a cammed up and over bored Corvette 283. My dad left the truck tranny in it with the "granny" first gear and the stock rear gears. If you only used 2nd, 3rd, and 4th to race someone it did ok. 1st was worthless because it would over rev so quick and the throw and ratio spred from 1st to 2nd was NOT set up for drag racing. The rest of the gears were wide ratio so the engine would fall below the cam for a bit after each shift. The tranny was not set up to shift quickly and the rear end gears were so low it would be turning about 5k at 90mph. The 283 was wicked but the truck was way to heavy for the torque/hp curve and the tranny wasn't matched to the engine at all. It was faster than stock but if that engine had been put in a Camaro, 'Vette, Chevell, etc. with a T-10, M-20, etc. and some 4.11's it would have worked GREAT! As it was the rig had a lot of giggle factor and it was fun to cruise down the boulevard and cam out but it wasn't nearly as fast as the engine should have made it you might say because the overall combo was poorly matched. The factory spent LOTS of money testing there combos and plotting tractive effort curves to come up the the cam, tranny, rear gear, and weight senerio that worked well. It will just take a little more time to get yours right now. You've just pushed outside the envelope of the factory combo and a little matching will need to be done now is all. It's all part of the hot rodding sport. Have fun with it and I guarantee you are going to know a BUNCH more when this is done than when you started.