I was making a little research just to find out what is the maximum safe size to bore the stock sleeves on forced induction . I was pushing 300whp with stock sleeves and I had a spun bearing and the cylinders looks like I need to go for the next size , but I wanted to know if 81.25 its fine (0,010, next size) if I want to push 350whp no more than that cause as far as I know stock sleeves are for no more than 400whp. Im just trying to find limits so I don't have to worry too much. I have a b16a block , Im planning to get b18 so I can make a ls/vtec sleeved but that will happen not too soon , so I need to fix my ride so I can keep going . can't live off the track lol. thanks in advance !