Ignition or fuel system problem?

I have a '78 308 GTS USA version with the points ignition system, twin coil and twin distributor set up. It has been running perfectly until returning from a normal drive last night when it suddenly developed a mild loss of power, and the engine sounded like it wanted to stall. I started it this morning and it took a bit more effort to start and it sounded different than it's usual low burble. There was a strong odor of raw gas in the air which has never happened. As I tried to back out of the garage, the engine lost power and felt as if it would stall. I has had a major service about 2 or 3 months ago, so everything is up to date. It starts easily but runs a little rougher than usual. So, could it be a problem with ignition or something with the carbs? Thanks for the help.

 

Thanks alot guys! I'll check those things and let you know.

 

Took off the top of the air cleaner and looked down each carb and they all were dry with the fuel pump running. I couldn't see an obvious fuel leak from any of the hoses or carbs and didn't smell gas but I didn't try to start it or pump the acccelerator pedal. I removed the rubber boots from each coil and each distributor and all wires are clean and intact and I didn't see any signs of burn-through or arcing. I don't have the tools or instruments to test the ignition system , so I'm gonna have to take it to the shop and watch what he does so I'll know what to do and which tools to buy for the next time. Thanks anyway everyone and I'll let you all know what the problem was when it's fixed.