Sorry guys I've searched but can't seem to find the answer I'm lookin for. If I do a compression test on a 160hp JDM B16a1 what would a resonalbe outcome be, and if I do one a 170hp JDM B16a2 what should the results be. Trying to figure out whether a engine is a B16a1 or 2. See it seems to have a a1 head, but it also has a a2 intake manifold and a2 block, I don't know. trying to figure it out.