A municipality may issue bonds the interest on which may be includable under the Internal Revenue Code, as from time to time amended, in the gross income of the holders of such bonds to the same extent and in the same manner that interest on bills, bonds, notes or other obligations of the United States is includable in the gross income of the holders thereof under said Code, for the purpose of financing certain costs of issuance or other costs related to providing tax-exempt bond financing for funding an enterprise zone business with qualified zone property as set forth in section 7-620, based upon a finding by the board, officers or agency delegated the authority to issue and sell the bonds that the issuance of such bonds on a taxable basis is in the best interest of the municipality and in furtherance of the purposes of sections 7-620 to 7-620e, inclusive.