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Discussion Starter · #1 ·
while waiting on rebuild kit for my 89 going to port head and intake and replace t.b with a 60 or 63mm so my big question is will stock valves and springs hold up want to do a total rework on head eventually but moneys tight right now any input would be great
 

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most people use there stock valves when they turbo they just upgrade the springs and cams when it comes to the cylinder head, and a port and polish like you are doing.
 

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ya just be careful if u put aftermarket springs in on stock valve because the valves can snap causing all hell to break loose inside your combustion chamber. just dont do anything real over the top without replacing the valves
 
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