For Mattax

Some time back in another thread on this forum, I mentioned that GM used MVA on production cars. You said I would to see 'that '. Now you can with the help of my son in law.
On the FBBO forum, in the Fuel & Air category, there is a thread titled '440 still idles with the screws turned in'.
Posts #81 & 82 show the relevant pages from the FSM.