Thanks in advance for any thoughts. I bought a 93 mustang to use the engine / transmission for my Mk4 build. The Mustang was running. Drove and shifted ok. I would love to do a Blueprint engine, but trying to stay within a budget. The engine checkup, removal, surface rebuild, etc is a first time endeavor for me. The goal is to remove the fuel injection system and go with a carburetor. I want to simplify. A friend recommended a compression check before moving forward.

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Being new to compression testing, but after some research, it appears that the difference between the highest (140) and lowest (115) cylinder compression is 25 psi, which is 10 psi more than accepted parameters.

So, here is the question ... Without doing an engine rebuild, are the compression numbers within usable tolerances? Beyond that, am I likely taking on more than I should for this part of the Mk4 build project? Please feel free to be harsh and direct. Thanks