I'm still not buying the huge winds (until we kiss the backside later overnight) outside of any convective elements. The rain is going to further stabilize the column (especially llvls) and like forky has mentioned a few times, the llvl lapse rates are garbage...including 2-6 km lapse rates. Outside of perhaps the extreme outer Cape, the LLJ likely isn't going to strengthen that much more than it is now...which is there is little momentum transfer doesn't matter much if it did anyways.
The real winds will come from the pressure gradient which we get to experience as this undergoes bombogenesis as its lifting through New England (the backside winds!)