Just giving a update (my car was looked at again about a month and a half ago)...Jamie at TVR found that the piggy back was making it have a lot of problems. For some reason, one of the settings was making the V-tec kick in at the every rpm...that's why is was soooo slow from the takeoff; it was opening the valve all the way. He disconnected some wires and it starts off a lot faster now.
But, as soon as I took it on the interstate, it was acting up. It started out great and I thought the problem was fixed until, all of a sudden, my speed started slowing down even though I had the gas pedal pressed down. It would not stop slowing down until I put the car in neutral for about 5 seconds, and then put it back in 5th gear. Then it would go again....for about two minutes, and then the same thing kept happening over and over.
I also found out through Edelbrock that the piggyback is only flashed for 7 psi and no higher. This kit was made for a 100% stock engine. However, the technicians at TVR must not have known that since they upgraded me to Skunk 2 valves and low compression pistons to handle 13-14 psi.
I call TVR every week and they always tell me they are busy or will call next week...I never hear back from them. I am going to talk to them in person tomorrow to try to settle this.
What I think is that the problem will never go away w/o upgrading from the piggyback to a nice EMS (which I don't feel I am responsible for since they told me I didn't need anything else besides what they sold me)...the crazy part is that they are a very reputable company around here.