so i got about $1000 coming up. and im planning on getting one of american muscles gear kits (4.10) and i want to know what tuner to get, sct or diablosport. im also looking into a NX EFI plate kit. and i need to know what i need to safely run that on a stock bottom end, like the rpm window switch ect.... anyhelp would be great thanks

 

Get the SCT Tuner- And for the Nitrous - you'll need at a minimum:

NGK TR6 Plugs- at .032-.035
Fuel Pressure safety switch
MSD Window switch (i'd go for the digital switch- its much easier to adjust)
WOT / Micro switch

I'd also get a bottle warmer, pressure guage, purge, and cupholder 3 position switch

 

what is the break in time on a set of gears?

 

Make sure you include in the cost of the gears the price to get them installed professionally. Unless you have a shop and know exactly how to do it, AND have the proper tools, you need to take it in to get done, which is like $200 in labor or so I believe. As for the tuner, Ive had both Diablo and SCT and I prefer the SCT, more shops use it and it comes with the stuff to hook up a laptop to it. And as for NAWZ, Ive never been a fan of it. I know its safe when done right, but on you average GT...... save the money for a supercharger.