Hi there, welcome aboard! Congratulations on the MGB, I had a '79 too, until a girl in a Cavalier happened to it!
By "electronic" fuel pump, I assume that you mean the solid state unit? They have the reputation of being more reliable, I have'nt used one myself, but some of the guys on here swear by them!
Good luck with the car, and enjoy! They are a lot of fun.