several good blowers out there, but answer one question, lowering the compression down to a maximum of 8 to 1 and 5-7 boost and also make sure you have a blower profile cam, you will make the same and more power with no problem...Rob

Blower Shop stuff is the best. No issues, snouts have zero issues. They just have everything figured out and their help is great! 800-950 hp or so, go with 10-71's. 950+, go with the 14-71's because you will have room to them up on race gas if you wish!

Talk to Richie Zul @ Zul Racing Engines. He just took 2 Supercat engines and put our 305's on them, think they made 1220hp. They were in a MTI @ Sarasota if you were there.

Actually, they're really bad, but really cheap. Weiand and B&M straghit cut rotors are the most inefficient roots blowers ever made. Weiand has some helix'ed rotors that weren't too bad, but the TBS is far, far better.

What do you think he lowered the compression ratio to? Or didn't he?

I was there but did not know the boat.

Rich