Quote: BTW it's going to be a Magnum 360. My dad's car is over 425hp (360 Magnum) and it's not stroked.
The crate Mag 380hp 360 makes good power and all they change are the cam, springs, and intake. A production 360 with the same or similar cam/springs/intake, milled and slightly ported heads and you are probably at the 425hp mark that you are trying to do.
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