New starter and new distributer. New fuel pump. New main relay. Car ran fine for a couple months and out of nowhere I parked it and it didn't want to start anymore. I re replaced the starter and nothing happened. It ingages and sounds like the starter works but doesn't turn over the engine. So I jacked the car up and checked to see if the engine locked up but it wasn't. It started right up doing that lol. I don't know what to do next and when the car is running it sounds like the starter is grinding on the flywheel. Please help me with some advice. I checked the grounds and all.

 

Air?
Spark?
Fuel?
Start with the basics. Also, you can't expect someone on the internet to help diagnose problems on a modified car without you listing all the mods that have been done since one of them might be the problem.