Will not start with CAM sensor hooked up

I had a timing chain go out and bent valves in heads. I had replaced timing chain and gears tensioners and guide rails started the car and ran great. Two days later water pump went out. So I replaced it and now it will not start unless I unhook camshaft sensor then it will start after about five seconds, but acts like it has a rev limiter right at about 3,000. Even when I am in drive once it shifts to next gear and rpm's drop. It runs fine until rpm's get back up to around 3,000. I have replaced the cam the crank the map and the mass air flow sensors and still the same. If anyone can help would be greatly appreciated.