I am trying to use proj4js to convert between WGS84 (4326) to NAD27 BLM 14N (ftUS) (32064). I am using this definition for EPSG 2674
`proj=tmerc +lat_0=0 +lon_0=-99 +k=0.9996 +x_0=500000.001016002 +towgs84=-8,161,176 +y_0=0 +ellps=clrk66 +to_meter=0.3048006096012192 +no_defs "`
I have also tried:
proj=tmerc +lat_0=0 +lon_0=-99 +k=0.9996 +x_0=500000.001016002 +datum=NAD27 +y_0=0 +ellps=clrk66 +to_meter=0.3048006096012192 +no_defs "
I got the transformation Parameters from here and have gone through these three similar SO posts one, two, three. My
proj4js transformation remains about 100ft off. I'm validating the result using both corpscon and blue marble. I can accept the limitations of a 7 parameter transformation but can't find suitable values for the Gulf of Mexico. 3 parameters are not tight enough. How do I form the proj definition to get this to work.
The coord pair I am using to test is
25.340631, -96.647033 the expected result for
EPSG 26714 is