I just have a few questions to ask that i would like answers to.
1)What car does the GX head come from, obviously A12 but what cars, eg. sunny?

2)Which is better to have, tha A15 head or the GX head?

3) If the A15 is the better, how much do you have to shave off the bottom to get the standard compression? I have found out that it is about 90 thou??? is this correct or better how much
total do i have to take off to get about 10-11:1 compression?

4) Which push rods do i use for the head under these conditions? Can the head bolts be rearanged to suit A12 patern for inlet and out let or should i just get a standard inlet and exhaust
manifold.

5) I have heard of like factory exhaust manifonds like extractors or nearly as good as, are there any that exist for the A15 or GX, if so what do they come off (which cars)???

I know most of you all would know something about these questions and all advise would be greatly apreciated as it is all help as i am trying to build a little rally car for myself to be
used up against a mate of mine in a club, so please, I WANT TO BEAT HIM lol
cheers
Anthony