Well some of u guys wanted to know... Msd efi is installed and have about 30-40 mi on it and it is for the most part awesome! The throttle response is awesome it revs like a crotch rocket! Just blip the throttle and the needle jumps 15grand and that's in gear runnin down the road. And starting, wow! love that just reach in the window and bump the key, vroom, hot or cold every time. Power curve seems to b a straight line pull all the way to red line, no more secondary surge. Install was easy depending on how u do ur install. I chose to go for dependability with an in tank pump and it's great so far, cept I need to drop tank again, fuel gauge may b hung up on pump module. Hand held unit seems handy and easy, but I have no experience with any others. Overall I'm very happy and the more I drive it the better it gets because it continuously learns. My only issue is my IAC pos seems to b jumping around but I'm sure a lil talk with a tech tomarro and we will have it dialed in or because my cam fell on the fence between mild and performance I may chg that setting. Anyway I love it My tires hate it!