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I have a heavily modded 300ZXTT and had a tune years ago from SZ, but My Z has never ran properly since. I did not get a full tune because after the 2nd pull, my front oil seal busted. I paid for a full tune, but never got over 4000 RPM's. I had a Z1 generic tune B4 with Ebay turbos and a single intake with much better results. Now I have: 90mm Weisco Pistons JWT550BB turbos Nismo 615cc injectors Selen translator JWT dual intakes Z1 larger throttle bodies and plenum matched Z1 flywheel Southbend clutch inland empire Alum drive shaft All new suspension Billet motor mounts All new wiring All deletes done SZ 3" downpipes SZ pipes to the back. No cats Blitz EBC HICAS delete Stock heads and exhaust manifold I run 95 octane with tolueneMy Z used to rip pavement up, but now it is slower after adding many upgrades, intake and tune. It also knocks at 3000 rpms in all gears ever since my tune. I never drive my Z anymore because it feels so weak now. The engine has only 7000 miles and great compression and no leaks of any kind. My Conzult shows no problems. I can't drive all the way to LA again. No time and don't want to go through all this again. Do any of you have a suggestion? Buy another generic dual intake chip? I'm not spending much more on my Z. I don't know who to trust. If you know someone in AZ that is a good tuner, please let me know. I have spent many years on this car and it should run much better. I don't want to take chances. I would greatly appreciate any suggestions.
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