I got a cometic top end gasket kit for 1550 rebuild. Its Drag number is DS172085. The cometic number might be EST T/E GSKT B-B99-02TC88? Was wondering if anyone knows if this has the .030 head gasket in the kit? Also have heard tell the exhaust gaskets don't work that well. Any one help me out on this? Oh and on the box the head gasket is listed as HO872.