small problem with the holley 350 on my slant 6

As the title saids - I have a slightly small problem with my holley 350 carburetor #2300 on my stock slant six. I was test driving the car when all of a sudden it started to shake like crazy and was losing power until... it actually shutoff. I was close to home and there was no one around so i wasn't blocking traffic. It was driving fine a few mintues ago and then its started to act up. tried starting it but now it refuses to start and sometimes shoots out of the carb when too much gas is pressed. now the car is parked until i can find out why it doesn't want to start.

Im not sure if this is related but when i tested drived the car, the car seems slow and not as responsive (perky) when in stop and go traffic.





since its raining now i have to wait until tomorrow so i can trouble-shoot this some more maybe play with the timing. if i miss any detail or if you have any additional test that i have forgotten let me know and I'll try them thanks