HP Ford 390 last time about a month a go started and ran great?

HP Ford 390 last time about a month a go started and ran great. Today running really bad but i did flood it. I left it alone for a couple hour starts up but runs really bad.

"running bad" means… How? Is it a rough idle? Rough revving up? Missing?

No

Might have fouled the spark plugs.

Car is likely running rich or plugs are fouled. Check the plugs. Check the float setting. Check for a bad needle valve.