I put a 14B in my car. If you can find one that is already rebuilt or in great working order like the one I bought, buy it. There is always at least one on ebay at any time. I put it in and love it. The dang thing can hold really high PSI to redline, even when it happens by accident.
I used the RRE install kit and highly suggest it. I wasn't at all bothered with the price. It saves you from having to gather a whole buch of parts together. Made the install very smooth.
A word to the wise: If you plan on putting that thing on a 3in or even 2.5in exhaust, get the O2 housing ported, the WG area and hole ported, and get the 34mm WG flapper. I upgraded to a full 3in after my 14B was in and the dang thing loves to scream up to 22psi with no hesitation. I have slowly been able to get the damn thing back down almost to an area where my fuel can support it, but it is not in control yet. Hopefully, my TRE ported 7cm^2 housing w/ 34mm flapper can get her back under control.
Tip: The oil feed line for the T-25 is stubborn and stupid. Just get some vice grips and clamp those bastards down hard on the fitting where it goes into the Oil Filter Housing. Twist really hard to losen and you'll end up twising the tube apart. It doesn't matter because RRE gave you a new one and god knows what the old one had stuck in it anyway.
Rob