dunno if SR ecu will throw a code 34 for missing knock sensor... on the KA it retards timing from 3000 onward and the engine feels sluggish. Probably not your problem but thought I'd throw it out there maybe someone else knows.
Have you built a pressure tester and checked your charge piping and IM gaskets for leaks?
edit: just saw you have the z32 and safc combo. Have you tried stock ECU/MAF and unhook the SAFC? Are your injectors stock sized btw?
Gl
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