There is no specific order for tightening....just use standard torque value for the size of fastener.
Hi Team,
here is are some scans from my tension wrench booklet showing generic sequences etc.
Generally start in the center and spiral outwards, I like to come up to full torque in three steps and a further run around at full torque just to be sure.
Also retorque after first run up when hot and again after 5 or 6 starts, the old copper asbestos gaskets shrink away after a while and start to leak.
Hope this helps.
Cheers,
Eddie B.