It learns Fire Blast at level 44.
at lv.80
58, but if it helps, you can buy Fire Blast at the Veilstone Department Store
In what Pokemon game? In the Pokemon Diamond and Pearl games, Vulpix learns Fire Blast on level 47. Of course, you could always teach it Fire Blast from TM38 on any level. Actually, Pokemon Diamond and Pearl are the only games which allow Vulpix to learn Fire Blast as a part of levelling up. The Pokemon games of the three previous generations only allow Vulpix to learn Ember, Flamethrower and Fire Spin by levelling up.
Blaziken does not learn fire blast. But a TM could.
Infernape doesn't learn Fire Blast on his own, you will have to use TM38 to learn it to him. You cannot make it learn Fire Blast through breeding either.
level 40
It can learn it at level 50 or by TM.
It needs a TM it can't learn it by leveling up I don't know what TM or where unfortunately sorry
it shud be around level 50 or over and shud really like u and in fire red only charizard or typhlosion or blaziken can learn it.
No, Arcanine cannot learn Blast Burn because it is not a starter Pokemon. Infernape, Charizard, and other fire type starters can learn blast burn.
Charizard does not get fire blast in Pokemon red, his last move he gets is fire spin on level 55, the only way that i know of to get fire blast is by defeating the gym leader, Blaine on Cinnibar Island.
Magcargo can't learn Fire Blast by level up. However, it can learn it by TM, which you get by defeating Blaine.