Hi, I would like to know from some good source, how much the compression height form a piston should be to get reliable on boost.

I would like to get some longer rods, but would need to lower the compression height of the pistons, I need to buy custom piston since I overbore my chamber.

I'Ve seen c-h from a lot of pistons and they don't go under 1" so I would guess that would be the minimum??

btw I would realy need the info, since this is the next part i'm getting for my setup (h23a/h22 vtec head turbo)