What would a good starting bin for tuning a 406 asm runners and ported vortec base with vortec heads tuning with tuner pro rt

 

What ecm? 92 730 speed density?

Just start with a stock iron headed L98 but modified for timing with the vortec heads and tweaks for injectors, idle settings, etc. see if you can Get it to fire and attempt running. Then go from there

 

Yes I have a 7730 ecm and g1 adapter on aujp prom so would I set the injector consantant to 24.4 for lt1 injector or lower then that my first time attempt thanks

 

New engine? If so do you have a WB installed?

 

You're gonna need a wide band o2 like the affordable Innovate motor sport MTX-L

I've got a 408 with trick flow heads and Holly stealth ram and a 219/227 roller cam. I have mas air flow though. I have 30 pound injectors and have the fuel injector constant at 21. That got my WOT AFR in the high 12's. Then I had to adjust the fuel tables for off idle and part throttle AFR's. Impossible to do with out a wide band 02.

 

What should the correct injector constant be in tuner pro rt for lt1 24 lbs injectors etc factory set is 22.38 what should I set mine to

 

Read this https://www.thirdgen.org/forums/diy-...uide-book.html