hey people, i've been lookin all around for some info on this, maybe someone here can give me some more insight as to what ignition timing i should have my engine set at with the cam i have. 
motor is L26, 10.5:1 CR (crane reccomends at least 10:1) dished pistons, early SU's, ztherapy SM needles, everything else stock. 
i've set it to 5-6 degrees initial timing, with carbs synched, it revs pretty nice.  just want to make sure (with out a dyno) that i'm squeezing out all the power i can with this cam setup at this timing setting.   maybe someone could share with me how i'd figure out how much advance i'd need? 
  
cam specs 
Overlap of 47.00 degrees and has in Intake Duration of 262.00 degrees. The Exhaust Duration is 272.00 degrees. The Inlet Cam has an Installed Centerline of 109.00 degrees ATDC. The exhaust cam has an Installed Centerline of 111.00 degrees BTDC. 
 set intake valves to .15mm and .2mm exhaust , hot 
  
timing @.254mm  
22 IO btdc 
60 IC abdc 
67 EO bbdc  
25 EC atdc 
  
thanks!