SUPERCHARGER= OIL LEAK

Got all the plumbing done for my paxton supercharger. Started it up & tuned the carb alittle & after about 5min or so i noticed a major oil leak from the pan. I had the pan down to weld the return line bung on. I figured it had to be the gasket leaking. I got to thinking that i had it running several time after i put the pan back up & with the blo-through carb with no oil leak. Now that i have the SC hooked up to the carb & all that extra air could that have caused the oil leak ?