Discouraging messages I have read in reference to which S13 to get. I unfortunately have a '90 automatic s13 that I am prepping to do the swap. From what I have read so far, my tach is not going to work and that it is more difficult to get everything running correctly.... Anyone out there do the auto to 5-spd swap or the SR swap into the SOHC S13? Let me know if anyone has any tips.. THANX