Auto will be superior to a stick in a 1/4 car. If this G8 is setup properly and has a decent tune it's going to win. If the guy has a nice stall converter in it probably won't even be that close.
Would have to see the full mod list on both cars though and even then its all on paper till ppl actually race which is why "will I beat X person" threads are always kind of useless... Get out there and find out.
2000 Mustang GT Steeda #0048
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.