plant size and pot size advice

can anyone tell me if i should and could bud my plants they are 8" tall and my pots are only 7" tall and 7" wide its top bout 4" it the bottom should i change in too bigger tubes be for flowering and the plant iz 8" all right to bud any advice plz

I mean... The more soil that you have, the more of a buffer against nutrient issues. The only really limiting factor is that there is a 12 hour period that you won't be able to water them. If they'll be using so much water that it stresses them to not be able to water them during that time, then you NEED to repot. Otherwise, it's personal preference. A larger pot per plant allows a greater final yield per plant. What kind of wattage are you flowering them under?

400 w hps mate and havent got grow light but it duz the job am skered if i bud them in the pots i get pot bound mate and are the it rite size at 8" tall