MJ,

"what numbers can i expect on an ideally setup SF 61 and pipe..."

Depends on the pipe design/volume and header length/tuning. As rainedave said the SF .61 is designed to run in the mid 11,000s. Its long stroke and timing require a longer/greater internal volume pipe than a 'normal short' stroke .61 uses. What pipe are you using? It should probably run a 12~10 at nearly what you are getting now. Try adjusting/tuning the header length.

Terry in LP