I have a bit of a funny story about a V6 stang...
I had a friend with a V6 auto, he had a complete Cobra R conversion, even down to the stock cobra exhaust. This thing looked like a cobra. My car was pretty stock (No filter and no mufflers, and thats about it).
So we were at cali speedway's poor excuse for a strip and we decided to run. The announcer announces us (we were in the "Grudge match" lane (which happened to put us in the middle of the imports run group) and just refers to mike's car as a mustang and my car as a kona. I could see all the old school domestic guys laugh in the stands. We staged and went, and i got him by .3, but here's the kicker...at cali speedway, there's no timeboards, so only you and the guy you ran know what times you ran. I didn't really think anything of it till someone came up to me and asked if i was the focus that beat the cobra. Talk about getting a big head.
So the moral of the story is. If its an auto V6 you need very little. If its a stick you need a little more.