  We analyze the matching conditions to determine the values that the ${\cal
O}(p^4)$ coefficients of an Effective Chiral Lagrangian take in the Standard
Model in the limit of a large Higgs mass, pointing out a number of subtleties
that appear to have gone unnoticed previously. We apply the resulting Effective
Chiral Lagrangian, including the leading two loop effects, to analyze the most
recent electroweak data assuming $m_{top}=174\pm 10$ GeV.
