UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. _____7_____)* SPX Corp. (Name of Issuer) COMMON STOCK, $10.00 PAR VALUE (Title of Class of Securities) 784635104 (CUSIP Number) Check the following box if a fee is being paid with this statement. (A fee is not required only if the filing person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7). *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).1 NAME OF REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Forstmann-Leff Associates Inc. 13-3131718 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION New York 5 SOLE VOTING POWER NUMBER OF SHARES 654,515 shares BENEFICIALLY OWNED BY 6 SHARED VOTING POWER EACH REPORTING 145,100 shares PERSON WITH 7 SOLE DISPOSITIVE POWER 893,215 shares 8 SHARED DISPOSITIVE POWER 334,300 shares 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,227,515 shares 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.7% 12 TYPE OF REPORTING PERSON IA, CO 1 NAME OF REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON FLA Asset Management, Inc. 13-29256626 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware 5 SOLE VOTING POWER NUMBER OF SHARES None BENEFICIALLY OWNED BY 6 SHARED VOTING POWER EACH REPORTING 60,100 shares PERSON WITH 7 SOLE DISPOSITIVE POWER None 8 SHARED DISPOSITIVE POWER 249,300 shares 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 249,300 shares 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.0% 12 TYPE OF REPORTING PERSON IA, CO 1 NAME OF REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Stamford Advisers Corp. 13-3421430 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION New York 5 SOLE VOTING POWER NUMBER OF SHARES None BENEFICIALLY OWNED BY 6 SHARED VOTING POWER EACH REPORTING 85,000 shares PERSON WITH 7 SOLE DISPOSITIVE POWER None 8 SHARED DISPOSITIVE POWER 85,000 shares 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 85,000 shares 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.7% 12 TYPE OF REPORTING PERSON IA, CO Item 1(a) NAME OF ISSUER: SPX Corp. Item 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 700 Terrace Point Drive Muskegon, Michigan 49443 Item 2(a) NAME OF PERSON FILING: See Item 1 of the cover pages attached hereto Item 2(b) Address of Principal Business Office, or if none, residence: 55 East 52nd Street New York, New York 10055 Item 2(c) CITIZENSHIP: See Item 4 of the cover pages attached hereto Item 2(d) TITLE OF CLASS OF SECURITIES: Common Stock, par value $10.00 Item 2(e) CUSIP NUMBER: 784635104 Item 3 Forstmann-Leff Associates Inc., a New York corporation, is a registered investment adviser under Section 203 of the Investment Advisers Act of 1940 (the "Act"). FLA Asset Management, Inc. is a registered investment adviser under the Act and a subsidiary of Forstmann-Leff Associates Inc. Stamford Advisers Corp. is a registered investment advisers under the Act and a subsidiary of Forstmann-Leff Associates Inc. Item 4 OWNERSHIP: (a) Amount beneficially owned: See Item 9 of the cover pages attached hereto (b) Percent of Class: See Item 11 of the cover pages attached hereto (c) See Items 5 through 8 of the cover pages attached hereto Item 5 OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS: Not Applicable Item 6 OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON: Not Applicable Item 7 IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY: Not Applicable Item 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP: Not Applicable Item 9 NOTICE OF DISSOLUTION OF GROUP: Not Applicable Item 10 CERTIFICATION: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes or effect. SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 13, 1995 FORSTMANN-LEFF ASSOCIATES INC. By: /s/ Peter A. Lusk Peter A. Lusk Chief Operating Officer FLA ASSET MANAGEMENT, INC. By: /s/ Peter A. Lusk Peter A. Lusk Executive Vice President and Chief Operating Officer STAMFORD ADVISORS CORP. By: /s/ Peter A. Lusk Peter A. Lusk Vice President/Secretary Exhibit A AGREEMENT The undersigned, Forstmann-Leff Associates Inc., FLA Asset Management, Inc. and Stamford Advisers Corp., agree that the statement to which this exhibit is appended is filed on behalf of both of them. February 13, 1995 FORSTMANN-LEFF ASSOCIATES INC. By: /s/ Peter A. Lusk Peter A. Lusk Chief Operating Officer FLA ASSET MANAGEMENT, INC. By: /s/ Peter A. Lusk Peter A. Lusk Executive Vice President and Chief Operating Officer STAMFORD ADVISERS CORP. By: /s/ Peter A. Lusk Peter A. Lusk Vice President/Secretary