cam selection for a blown 505

there are a lot of variables to your build in order to choose the correct camshaft for your combo, cfm of the blower? Flow chart numbers for the heads you have and valve size and spring pressure, intake runner size? If you could post these things it could help. A cam that worked for someone else's engine combo similar to yours still won't guarantee the same results for your exact combo. Good luck! I am sure there will be tons of replies and hopefully they can help. But the more specific info you provide will help a lot.