How many super saiyan levels is there in dragon ball z burst limit?

..probably.

fact is,though...

goku fuses with the dragon before we can find out how much stronger he would have been if he hadnt,the one more skilled than vegeta at attaining these power levels-vegata of whom you could call 'lazy' in a way, in regards to reaching for these levels of power.there just seems to be a point in the series where he isnt trying as hard as before to figure his inner abilitys out-

and the series ends.

if nothing else in the end, just remeber this..

the universe in both fantasy and ours is eternal, and so are its possibilities.

some person who puts their hands on their hips and says ''that cant happen''..has no idea what theyere talking about.