[Red S/C]

aa4v - those numbers would be very close to the numbers we have seen. The engine (533 dual 750's) I currently have did 696 hp and when we do the chassis dyno we're looking for around 570 to 580. Sidepipes and headers are a big part of it. We used 2" pipes on the headers and 4" on the sidepipes with the spiral inserts which we had great success with in the past.