Choosing of converter help

what will be the best converter to my combo? The car will be most driven in 1/8 mile. waiting on my engine getting finish, the combo is 408cid , well ported W2 heads, TTi W2 headers, 830/1050 holley,10,8:1 comp, comp cam duration 296 valve lift inn 0,649 exaust 0,651 rpm range 4200 to 7400. 727 tci transmission, dynamic 9,5 3800-4200 stall, 4,56 gear, 28-10,5x15 slicks. Been reading the converter should be 1000rpm over cam starts to pull?