samuel642000

i have a 87 mustang with just a few bolt ones and not alot else my problem is when i driving it around cruising it runs fine but when i floor it it starts studdering and backfiring around2700 - 3200 RPM's it kind of acts like it is out of gas or something but i just replaced the fuel pump/ filter. so i dont know where to go from there.someone mentioned a head gasket anyone think this could be it?any help would be greatly appreaciated