I have a 2002 Lexus is300. I got into a car accident, got hit in the front and broke my exhaust cam. Pulled the engine out and tired to put the engine on the engine stand but I couldn’t get one torque converter bolt out so I pulled the head off and I had two valves sitting on top of the piston. Found out I broke 2 exhaust valves and bent 4 intake valves, I got oem valves installed them and the head was complete. The block was in good condition not happen to it. Put the engine back in, put the wiring on before putting the engine into the car, all ground are connected, I have a good battery and starter. My fuel pump is working. Each time I try to start the car is wants to start but it dies but each time we put gas into the intake it wants to start but the timing belt is turning slow each time I want to start it. Timing is good on the car I checked multiple times. Main ground is connected. I can’t figure out why the car doesn’t want to start. I know it’s a lot but can someone just help me out to see why it doesn’t start.