Does '90 have the new style dash? I don't remember when the 740 got that
update.
The green books are excellent, I don't know if Volvo still sells them,
but they turn up on Ebay from time to time, and I recently saw a
complete set for the 740 on Craigslist, but the Haynes manual covers my
'87 and has been adequate so I didn't buy them.