| My mods are in my profile but I have pretty much every mod other than a completely stock motor/TB's and manifolds(they will be purchased with turbos). I always thought I'd go with sport 530s but I really don't know anymore. I am in love with my cars low end power and spool but the top end is lacking. I initially thought sport 500s or 530s but looking at the dynos they don't seem to offer a whole lot more top end and they lose some down low. Anyone have some 550 dynos with full breathers?The sport 700s look promising from what I've seen but they lose so much bottom end that it doesn't really make up for top gained. I've seen several larger turbos that have a substantial drop in tq around 4500~ that that starts climbing back up? I read something about that but though it was only 530s but I've see some other graphs with difference turbos . Anyone know why? I know there are a lot of new turbos coming out or already out, any looking promising? I'm looking for a quick street car not a drag racer that runs on 91octane daily. Ideally I'd be able to repeat my current dyno but with more top end. 
This is a sport 500 car with the same mods as mine and while he made marginally more power he sacrificed a little low end and ran more boost.
 So long story short how do I keep my current instant spooling set up while simultaneous gaining a sigficant amount of top end? The stock turbos just seem to gas out higher in the RPM band. I've searched and eventually will just call Greg but I'm not quite ready to buy so I'll just research the net for now.
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What are the best street turbos these days? - 
