not correctly and not enough because it would still think that the engine was supposed to be stock and try to compensate as though it were instead of what the engine actually wants. the MAF tables don't come into play for rapid throttle changes anyway as their readings will lag slightly behind what the engine wants right now, the VE tables are used in that case and they would be calibrated for a lot less air than you would pull in so it would lean out.

 

I didnt think so. Id guess it would change just enough for weather changes.

 

When the truck is in closed loop in cruise it will be getting the right amount of fuel. It will push the fuel trims over and as long as you take it real easy it wont hurt.

 

Seems like its a up in the air decision. So say no, others say it wont bother it as long as i use caution. Sounds like this is a debatable subject.

 

Fuel trims can only compensate so much. It really comes down to how big of a risk taker you are.

 

Im not rich. And having to do any motor pulling would need done in my driveway and i dont wanna do that when its 30 degrees out. Lol. So not a risk taker here.

 

If its not forced inducted, drive the thing. Even if it leans out, it can't force enough extra air in to hurt anything. It might blow the spark out if it gets too lean, but you will know that. We put my cam and stuff in and I went and beat on it as soon as I got it to idle on its own. Took a week and a half for the tuner to get me in. 165k miles on the stock shortblock and its still together even with the wife driving it all the time.

 

The biggest thing that can change a tune are injectors. If the injectors are the same, it should idle and cruise pretty good. They make scanners for smart phones these days. (I have "Torque" for my android) I would scan your trims and see what it is running like. I wouldn't make any WOT runs though. If the trims are off too far, I would not run it at all until it has been tuned.

Isnt there anyone close that can put a quick tune in it?

 

Unfortunately theres not. And id have to be scheduled in and 500 bucks for a tune. No buddies aroubd here can tune.

 

Well i made the drive and it did great. Wish i would of known you had to park way back in a field then walk half mile up to the track or else i wouldn't of even drove it. Wasnt anything like ls fest.