SOURCE STATUS SECTION DESCRIPTION TB 98-05 Eff 5/1/98 A.5.f.9.F Add subsection as follows: Alternate Eurospec Sports cylinder head may be used. TB 98-04 Eff 4/1/98 C.2 Correct overall length minimum and maximum to read: Overall length (including exhaust). TB 98-07 Eff 7/1/98 C.8.b Change the second sentence in the second paragraph to read: For cars without a subframe, the tray shall be no wider than 16" and shall not deviate more than 1" from the horizontal plane. Undertray must be firmly attached and have no downward turned edges. BoD 12/97 Eff 2/1/98 C.9 In paragraph seven (7), delete 'and accessible' from the first sentence. The sentence will now read: The rear locating arm(s), coil spring(s) and shock absorber(s) shall not be faired in and shall be visible from the side without the removal or manipulation of any part or panel. TB 98-03 Eff 3/1/98 C.12 The diagram referenced in this section was inadvertently omitted from the 1998 FCS. It appears in the 1997 FCS. TB 98-01 Eff 1/1/98 E.15.f Add section as follows: Engine specifications will not be changed during the current year. BL 12/97 BoD 12/97 TB 98-02 Eff 1/1/98 F.1 Delete: Regional Class Only (may compete in Formula Atlantic for National Competition) TB 98-06 Eff 6/1/98 F.1 Correct section heading to read: FORMULA MAZDA Preparation Rules. TB 98-04 Eff 4/1/98 F.1.e.1.D Add at end of paragraph: Adjustable rev chip MSD P/N 080-135, with a rev limit of 6800 +/- 50 rpm may be used. TB 98-06 Eff 6/1/98 F.1.e.3.H Add paragraph: Alternate one-piece intake manifold (P/N 050-142) is permitted. TB 98-06 Eff 6/1/98 F.1.e.10.G Add to the end of the paragraph as follows: Alternate BBS wheel center (P/N 000-143) is permitted. TB 98-04 Eff 4/1/98 F.1.e.16.G Add subsection: The aluminum undertray may be replaced with a stress-bearing undertray, minimum of eighteen (18) gauge steel. The undertray shall be attached to the frame by welding, bonding or by rivets or threaded fasteners.