Damn, that was a long sentence. Sounds like a clogged fuel filter. Fuel pressure should be 37.5 with vacuum line removed.

edit: if the cylinders are indeed hitting 119 then that's below the service limit and a likely cause.

120 seems really low, i would recommend a cylinder leak down test...that will show where the problem is...a leaky head gasket could cause a misfire under boost...had the same thing happen to my '87 Toyota turbo pickup...I ended up doing a coolant block test with the liquid and it showed combustion byproducts in the coolant... replaced the head gasket and fixed it! The reason i chose that coolant block test initially was because I suspected it might be a head gasket...took off the radiator cap and it smelled like combustion vapors a little bit...
You can also check the engine oil...is there any coolant in the oil? Take off the oil cap and if it looks milk chocolate color thats a problem! However this doesn't always happen with a faulty head gasket...

Thanks ill check that today

Compression is quite low. And do a boost leak test you have classic symptoms.