I also have an (in progress)a '74 360 that's 20 over w some Badger B290 pistons (iirc 1.536"CH) & prob a cheap Eagle 4" crank and I have some .050" under rod bearings so I am going to destroke it some and rebuild the rod big end w the intent of shortening the C to C plus mill the piston deck to get back to zero deck & cut some notches maybe a partial dish more for CR reduction than VP clearance. More for a torque mtr for a daily driver '65 dart. QUENCH for sure maybe .035" max. Kind of an oddball deal but it's my baby & what I have & I ain't getting no respect (from fellow drivers) w the current tired 318 plus the carb from Hell (Eddy 1406) cant pass a gas stn