Hi, I have a 1990 Honda Civic HB 5-speed (I'm almost positive it's a D15). Anyways, it is NOT Si, so it doesn't have a tach... but I am planning on putting in a tach from an Si (or a CRX, my friend let me borrow one and I tested it and it works fine). Anyways, since the car doesn't have it's own original stock tach, I was wondering... what is the redline? Any suggested shift points? Thanks in advance!