the latest is....you can build your own from vortec parts bin for just under $3000. the ecu will self adjust to 5-6 psi, so no need for a ecu, unless you want to get it programed by TVT or Inmotion just to fatten up the AFR or pull out some timing. Timing can be advanced or retarded via a Split Second piggy back computer, if you desire custom dyno tuning. but just bolting up the vortec and making brackets shouldn't cost you more than $2500, but I would upgrade to larger injectors that can handle at least 320hp