so your putting this on stock turbo?
1.) the lc-1 will work with the aem.....dont know how the wiring work on it tho
2.)most people use the aem 3.5 bar map sensors and the rage adaptor......some people use mopar 3 bars......not many people use the gm's
3.)spark plugs are personal preferance......i would suggest the ngk4306's or the iridiums 1 step colder
4.)contact
TurboTune Home Page on tuning it down there......he is a pretty good
i would seriously re consider a aem ems install on a stock turbo car......its not really worth it......you wouldnt gain much hp.....gas mileage would be slightly better....