[F] I have a 1992 Honda Civic LX 4 DR Sedan with a 1.5L Engine. Now it takes me about 20 minutes to start my car. I thought it was my starter so I replaced that, then I thought it was my altinator so I replaced that. I also replaced my distributor cap, and the car has new valves, valve cover and gaskets but still seem to have a problem starting it. Could this be because of the Fuel Pump, Fuel filter, or maybe the Master Relay Switch. I know that I have checked the fuel pump and I do smell gas in the line.

I have already dished out money on this car and I need to know where to begin with this problem. Can someone possibly help?

Since you did all that, I would change fuel filter.
Check plugs, Compression Test?

Read sections A and B below:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563.html

Does the car have auto choke? Is it fule injected? If its not f/injected it could be the carbaretta.

[F] I have a 1992 Honda Civic LX 4 DR Sedan with a 1.5L Engine. Now it takes me about 20 minutes to start my car. I thought it was my starter so I replaced that, then I thought it was my altinator so I replaced that. I also replaced my distributor cap, and the car has new valves, valve cover and gaskets but still seem to have a problem starting it. Could this be because of the Fuel Pump, Fuel filter, or maybe the Master Relay Switch. I know that I have checked the fuel pump and I do smell gas in the line.

I have already dished out money on this car and I need to know where to begin with this problem. Can someone possibly help?
Have you checked your battery and their connections? Sometimes they aren't grounded properly or they get a corrosion on them.