i'd hate to break it to ya, but that Jet MAF sensor is not doing any good to the integrity of your car! especially since you have added the intake and exhaust as well.
here is a quote from a well known tuner:
I have been seeing a trend lately of people putting aftermarket MAFs on their LSX powered vehicles. The next thing that happens is that they buy a Predator and want to know why their fuel trims are so far out of whack.
This is because these aftermarket meters are trickery....they simply alter the MAF signal to make the PCM think there is less air moving through them, in order to command less fuel....scary.
This becomes a bigger issue as you add more mods to the engine, since as you increase airflow you generally need more fuel.
Here is a quick list of reasons to avoid these meters:
1. Price. These things aint cheap, and considering they are of little to no use on anything but a bone stock, untuned car, it is not a mod that 'grows' with you.
Plus I hate being the one that has to tell people they should put their stock MAF back on after spending over $300 for one of these things.
2.Tunability. We have seen that in addition to the issues described above, that these meters are not very repeatable, and sometimes have funky curves that are VERY tough to tune around.
3.Airflow. Alot of people seem to think that these meters will flow better than the stocker, but that is not necessarily true. Removing the screen on the stock unit helps alot, and adding aftermarket ported MAF ends to the housing makes it great. The aftermarket units are the same size as stock, and thus flow about the same. Not to mention you would need over 400 cubic inches to really max out the stock 75mm MAF on an F-body or 97-01 Vette, and they will support at least 550rwhp naturally aspirated, and plenty more with boost.
but welcome to the site! we are here to help!