Is this for 1/8 mile with the high gears and small tires(4.86 and 26 inch tire)?I use a COAN 8 inch 4500 stall in my 410sb with 29inch tire and 4.30 gears.Sounds like you,ll be out of steam by the 1/8 ft mark.JMO.
Its not out of steem in the 8th. Im only about 6200rpm in the traps in the 8th Its way out of steem in the 1/4 but the 1/4 is a once in a blue moon thing like the nats. it just wont leave hard it pulls great at about 60ft on but my 60 ft sucks.