Detomaso head bolts

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Hey guys, I have a 95 jap spec charade detomaso in the garage I'm fixing up for my boy due to start driving next year. The head gasket is stuffed and pressurising the cooling system.
I have the head set to go on but no bolts.

Anyone know if they need to be replaced, they don't look like stretch bolts so I'm inclined to just use them.
I have been reading that it seems to be common practice to skim these heads as routine, I have run a straight edge and feeler gauges over it which seems to be ok??
Also if you could confirm the torque figures I have that would be awesome.
Any advice is appreciated
Cheers