Ok so after a lot of thought, fund management, and internets reading I think im going to start prepping for a turbo build for my M20. I have recently read so many threads my head is spinning. But it has given me a lot of insight and makes me proud to be part of R3v. Now ass kissing aside im thinking about doing my usual turbo prep before buying the actual parts. Im thinking Cometic Headgasket, 19-21 lb injectors, megasquirt and so on. My car has 113k original milage. The one issue im having is the fuel pump delema. Do i just got Walbro 155? Also noticed that there is a metal line pinched under the car and there is a hissing sound coming from imbetween the driver side front and rear seats near the frame. Since i have noticed this the car has become hard to start and seems to run rich at times. Advice on that please as well. Im thinking low boost 250whp goal. Now i dont know a lot about the M20 but i have turboed a few s50-s52 and one S54 <3. All insight is welcome. Figured i would try the pro's here before moving to a less appealing forum for help.