OP, what CR are you running, and I assume your running pump 93.
If my eBay turbo ever craps out I will seriously look into replacing it with a 4094r. One thing nice about running a larger turbo is that if you do have a boost leak, the large turbo is able to compensate for it. In fact I've never boost leaked my car, I probably should, but it seems to do just fine where it's at. FWIW, my JB 72mm eBay special hits 10#s at 3800 rpm. And I'm running a 10# WG Spring with no EBC or MBC.
WOT
but i went with an Emtron KV8 ecu. It runs good now, Although Covid has ruined this years track events for me.Emtron KV8.jpeg
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