Will a stock block last with that sort of power ?.
I would sell the short block or keep it as a spare and build something aftermarket to meet your goals.
JMO Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36