you can run 11:1 cr with pump gas if the cam is big enough and has enough stall and gear.
The difference with a blower is the engine would make the same power but with a much smaller cam. And a mild cam will have a smooth idle and you can run a stock stall and gear. Plus the low speed toque would be twice as much. So you save some cash on gears and stall and it makes a much nicer street car. Plus you could use the engine you have since it is new and has 8.5:1 cr.
Performer heads are better than vortecs. I'm sure ap72 missed that in your setup.