I just bought a 94 gt and from what the last owner stated, it has gt40 heads along with an explorer upper and lower I take manifold as well as a 65mm bbk throttle body. The car does not run right and sputters out after takeoff at around 2.5k and 3.5k rpm, if it makes it past that it runs fine and it does this almost every other time I drive it. It’s also just now throwing codes that there is a short in power to cylinder one and after replacing alternator it ran decently fine no problems until I started it back up again later that day and it started acting up again. Any suggestions on how to fix this? I’ve replaced the IAC and TPS already as well.