hi everyone, want to know what would be a good scheme for my h75 head, could not get hold of a gx or h89 (i know hey are much better) but have to work with what i got. i want to get compression good for street use, say about 10.5:1 if anyone could tell me how much to take off the head. i've already got double valve springs for it and getting it flown and match ported for the twin su manifold. another question is how light should i go with the flywheel, i know it loses some power, but i need the thing to rev up fast. any help is greatly appreciated