in regards to the cam, a bcf2 is a good cam for a streeter, ( have one i could sell if your interested (little pitted on the lobs but still good condtion,only reason is im pretty sure ill go a bcf3 or 234 all these cams are kent cams
as for your rings they would of been gone for ages i no my mates 2tg corolla had all the rings smashed just blue heaps of smoke when you rev'd it hard