okay so I have always been a carb guy just because its cheap. so I bought a 88 TPI system for a 305 but im running a mildly built 350. I was just thinking is it possible to tune the factory ecm in realtime? i think thats what its called. also i think i have 19 lb injectors i think i have to go larger, although a friend of mine told they would work if i just turned up the fuel pressure. i just dont like the way that sounds. can you guys help me out? i want to do this right the first time. thanx

 

I believe the Moates Ostrich is what you are looking for. You can change the data on the fly.

 

like 1989GTATransAm said, the Ostrich will do what your talking about.
if you want to put a chip back in the car after you get it tuned you will need to have a chip burner, if you have one then the Ostrich is for you, if you don't have a burner you may what to look into the AutoProm. the AutoProm does real time emulation & burns chips.
the AutoProm must have a laptop hooked up to it to work, the Ostrich can be programed with your desktop & then put in your car & run by itself.

you will probably also want to read the stickies at the top in the DIY PROM section on the board here.
you can find both the Ostrich & AutoProm, along with pretty much everything else you need to to tune your ECM here, http://www.moates.net/