Originally posted by b2zone
Hopefully I can get some input from experience. I am buliding a streetable blown 454. I am planning on running a 671 blower. I think this should push Grandma's 52 chevy down the road. I have been told that if I run a blower with about 8 lb of boost I need to O ring the block. Any input?

Thanks
8 lb. boost on the st. no. if things ant right you gonna blow it up anyhow, and if things are right you dont need it for the st.