id really like to have a discussion on the pros and cons of several different types of efi. i would like to eliminate any system right off the bat that uses a mass airflow sensor. i would also like to eliminate tbi. not that i have anything against it. id also like to eliminate any system that has a price tag over $1000 or so. id really like to be able to buy the system in stages, make alot of my own parts, and use readily available sensors. ive been thinking about buying a tpi computer and harness and then modifying it to suit my needs. but i would really like a system that could be changed on the fly. is that possible with tpi? ive been reading about megasquirt, which is basically a computer that you build for pretty cheap, and is pretty easy to set up. ive heard of guys using it, but i am unsure about its reliability. http://www.bgsoflex.com/megasquirt.html if you want to read about it. what else am i missing? do you know of any user friendly efi systems that can be built on the cheap?