In fact this performance was done in september 2007 and I lost strength in 2008 due to under training. I used too light loads : 80% to 90% of 1RM. Now I have found the ideal load ~95% and I make progress. My deadlift is stronger than before, my Floor Press and Curl are nearly back to my best strength level. My best curl performance was done in April 2006 (more than 3 years ago) and I'm not stronger now. In 3 years of training I haven't been able to curl more. I very often overtrained, sometime undertrained (2008) but now things are finally going well. In 1-2 months I should be stronger than in 2006 on both Curl and (any) Press.

BTW I lift 171.25 but it's not a 1RM. It's only 95% of my "good form 1RM".