  We present multiwavelength spectral analyses of two Fermi-LAT blazars, OJ 287
and 3C 279, that are part of the Boston University multiwaveband polarization
program. The data have been compiled from observations with Fermi, RXTE, the
VLBA, and various ground-based optical and radio telescopes. We simulate the
dynamic spectral energy distributions (SEDs) within the framework of a
multi-slice, time-dependent leptonic jet model for blazars, with radiation
feedback, in the internal shock scenario. We use the physical jet parameters
obtained from the VLBA monitoring to guide our modeling efforts. We discuss the
role of intrinsic parameters and the interplay between synchrotron and inverse
Compton radiation processes responsible for producing the resultant SEDs.
