Turbos, stock to 1000hp. 57, 59, 61, 62, 63, 64, 66, 67, 70, 72, 76

How well does the CEA 5857 work with stock converter? I've heard this turbo is a viable replacement for the TA-49? Is it really worth dropping $1500 for the BB version?
 
Do you still have ported heads set up for a hydraulic roller. Flow numbers ? I n.eed some now
 
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