2222 Anchored by an 87°76 conquest of previously-unbeaten Vanderbilt in ian ia dress rehearsal, Iowa State is poised to shoot for its first Big =evenpost-Chrsotmas crown this weeken when the tenth annual dribble derby opens a four-day run in Municipal auditoriume Thr Cyclones will tote the best record among tourney entries into the big arena ;vS-l, The Cyclones, playing their second season under Bh1ll Strannigan , will come into the Big big arena with the best record among tournament teams at 5-1. Furthermore they own a 13.0-point-per -garmp spread, fiveetenth wider than that of Missouri's defeni ing tournement cham pions Vanderbilt had won siz straight before it invaded Ames | “Priday, was Sth- ranked in the latest AP poll ant 19th on UP. &uky Tulsa was undefeated in four games until running afoul of the Cyclones Yecember 10, 50-62. Only three points, a 62-65 loss to Yenver at Denver, Wednesday, separates the Iowans from a perfect slates : They thus qualify as the highest barrier te a Missouri repeat. This 4s rare stature for a team xhxbxnasxfiutsked which never has finished higher than third hine previous meets( 1948 and 1954) and has languished in last place twice and seventh three times. Happily the Rtx Cyclones and Tigers are in opposite breaketse The former will run inte immediate trouble since it drew Kansas State in the opening round in the nightcap of Tuesday's opening card. This ta should be the tighest battle of the first-round four game set » State , 5-5, has played a tougher preliminary slate, losing only 79-86 to Kouskon well-regarded Houston, Thursday in Houston in its final pre-kax meet atavk test.