my buddy has an ls/vtec with forged aluminum pistons and stock valves. He has a 125shot in it and is wondering if the stock valves will hold a 175shot. he has an electronic fuel pump with the fuel pressure set at 55psi. do you think the stock valves will hold?
thanks in advance

 

well, I think he would have to worry more about the rods blowing through the side of the block, than the valves melting, atleast I would