LA plant is known to have very poorly stamped VINs 9F140705 from Newark would've been October '68 & a full VIN stamp engine Newark built C-bodies & there are NO 383HP C-bodies
9E140705 was a 219 (Wed. 2/19/69) scheduled RR & the "E 383HP" engine assembly date (Mon. 2/3/69) fits well for this car