60 thousandths or .060
.035
.045 gap
The 1996 Pontiac Grand Am with the 3400 V6 uses factory (already 'gapped') at .060-inches. The OEM AC Delco Professional Platinum part# 41950; the Professional Iridium is 41993. Again, no gapping is necessary.
60
.045 " is the correct gap.
Spark Plugs .035Points .019Plugs--AC/Delco R43N
0.035 inches for CR43TS or R43TS AC Delco spark plugs
Depends on what size and year engine it is installed in.
Use a Ac/Delco PF61
When you buy your AC-Delco recommended spark plugs, the person who identified the spark plugs for you at the parts shop can find the gap on the computer he used to identify, and gap them for you. Most cases, the spark plug is already gaped because it is matched with the car, especially if you buy AC-Delco Plugs as the manufacturer suggests.
AC delco is just a brand, nothing more.
pf59 AC Delco