Ok got a 92 civic lx 1.5 ltr D15b7 4door ive put fuel filter,plug wires& plugs took off the iacv ,and trottle body cleaned good iacv,and trottle body the rest is new. Cv valve to . Still acts like it lops hard to in gear harder but took it to shop said i got a bad valve lecky anyways. One are there any other heads that can bolt to that engine nicely. Two what else could be