Idles great but the second I throttle miata stalls
 

Hello everyone! I have ran into an issue with my miata and have been told it is a tuning issue, I can let the car idle safely no leaks or anything however when i touch the throttle it instantly shuts down. If this is a tuning issue, as someone running with a t25 turbo manually set to 12psi, 1.6l miata (1991) with rx 8 injectors at 420cc what would I do in megasquirt for a safe tune? I am just looking for something that can get me running so i can drive my car around to get the other jobs done on her, i plan to custom tune in the future but right now between my miata and MINI i seem to always have 1 car down and out. Appreciate the help.

Post your tune. I suspect valve duty is too low.

+1 on posting your tune. Is your car leaning out, or riching out when you give throttle? Is AE enabled?
Watch your AFR readings while giving the car gas. Also lean on the throttle slowly, that way you can watch where the AFR goes. If you mash on it, then it won't give you enough time.