524 most cid DT have built lots of small blocks just none with blower no w-8 only 360-1 or2, w-5, b-1ba mc record my friend cameron 7.80's and the fastest combo out of the ones you think Al would like to run 7.90's but want to go as fast as we can with what the rules allow, my challenger has been 8.20 @ 3450 477 cid and nos rules page http://www.nmcadigital.com/forums/showthread.php?t=10735