Superchargers that offer a top mount?

My engine is stock compression. I rebuilt this engine7,000 miles ago. It's basically a stock rebuild. Eventually I will build another engine and a head with bigger valves. As for the blower, I got it off a member on the hamb. I think I paid 600 for the blower with Chevy intake and a 750 Holley. Then I spent 800 having the blower rebuilt and polished.