Ok i have a 90 acura teg LS b18 a1
im gonna rebuild my bottom half stock i was wondering if my stock rods will handle 7500 rpm? Main thing is wtf should i do with my head should i just rebuild my head with performance parts or i have also heard that i could benifit from a b16 head for more compresion and higher revs dont know if thats true but thats y im here now and if it is true what should i pull the head off of?

if i do keep my stock head i was gonna machine the shit out of it i make a ok amount of money so i have a little to play with.

last thing before it blew up it had a messed up idle problem it would rev from about 1k to 2500 rpm at idle i was told it may be my IAC (idle air control) but i pulled about 3 off junk cars and they never worked PLZ HELP i hated that crap

any help would be greatly appreciated