Car stalls when you give it gas when it is in gear.

The carb was rebuilt about 2 years ago. I had the engine resealed when i bought it. I drive it every month of so. I tour with bands for a living. I bought a new fuel pump but it was the wrong one. it idles great, like a sewing machine. but when you put it in gear and mash the gas pedal it bogs down and wants to die.

hey im fixing up a 68 lincoln continetal with a 462ci and we rebuilt it ran it over the summer ran good then stoped so i turned the distribtor one tooth counter clockwise and it runs again but dies when i give it gasjust here air suckin in ?? what else could it be then the carb it needs to be rebuilt