for that water fitting, check out a stock 289 65 mustang or a similar year FE, Ford makes a clean stock 90 degree fitting that fits right where you need it. I just cant remember which one I got mine off of, maybe Dearborn Classics knows.

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DSS 347 11.1, Comp Hyd Roller 555/576, 185 AFR, Roller Rockers, Holley Ultra HP, Edel Victor Jr, Moser 3:55 9", 4wdb, TKO 500, CalTrac springs/bars, Powermaster 1 wire and lots of Aeromotive stuff.