Question: what should i evolve my eevee into fire red?
Answer: Accepted Answer. Get rid of that Pikachu of yours and replace it with Jolteon. If you had Venusaur then I would suggest Vaporeon and if you had Blastoise it would be Flareon but Jolteon is your best choice. It is a fast Pokemon that is much better than Pikachu and can easily destroy Blastoise.