5'4" 175lbs. I don't know if height makes a different or not. I think it might, in that I have a shorter distance I have to move the load than someone who is taller than me.
As far as leverage goes, a shorter person does have an advantage, and therefore usually have a high strength-to-weight ratio than a bigger lifter. There is a formula used to determine how much a person would have lifted if they were participating in a higher weight class (this is known as the Sinclair total), and the highest ranked is usually within the 69 kg class (which is, typically, around 5'8"/5'9"). However, a larger person will typically have a larger muscle mass and will be therefore be able to lift a much higher weight (even if it is less compared to their body mass).
This is all olympic weightlifting though, but I'm assuming it still applies to powerlifting - it's not really relevant anyway, because a 355 lb squat is good under any weight class. What type of squat was it?
