with out dyno does any have a rough clue of what this motor can push out

ls block bore 84 mm (aftermarket sleeves)
je 12:1 piston
eagle rod
knife edge balance cranks
8lb-10lb fly-wheel
gsr head
web-valve spring, retainer
crower cam (0402 )
polish head w/ pro-series valve guide cut
dc sport header 4-2-1
2-3/4 full exhaust

 

There is no good way to tell without a dyno.