Cars coolant wants to stay around 172degrees on the road . Car misfires in all cylinders when it wants it. I don't know why my Aero force gauges tell me I have a 5th and 6th cylinder which misfires for some reason.. Around 15afr jumps to 29air fuel ratio sometimes. The car a few times chugs as if it has a cam at a stop, shuts off and starter won't start it back up unless I wait like 10-20secs.
Done a valve job. Oil changes often. Antifreeze swap recently, and again it's low..doesn't seem to be leaking from anywhere so that's I'm gonna replace my thermostat. Don't think my gaskets blown cause car doesn't heat up enough. Gonna pressure test
I'm all stock under the hood except for my airbox mod and trifecta select a tune flash. Zpp Cat less down pipe. Think my stock bypass valve is giving out, and pretty positive I have boost leak in the piping. I'm gonna replace all the charge piping and inter cooler and add a bov.
Any tips or advise is greatly appreciated

 

Build date and miles?

Search porous block.

 

It's an 09' lnf
Build day is 12/08
And I have almost 64,000

If my block was warped I don't think my car would be running as is. I mean it runs, it just runs like crap sometimes but it gets me around usuallyyy