loosing boost

[dalejr052001]

i have had efi live on my truck almost a year and havent noticed it til here lately that i have lost almost 20 lbs of boost...when i had a smarty on my truck i would push 60+ lbs...im running an s475 with 200hp injectors, fuel system, spearco intercooler...im pretty sure i dont have a boost leak...thinkin maybe map sensor or boost fooler is shot...any help would be appreciated

 

[takedown95]

What are you using to measure your boost? The factory sensor or mechanical or?