Originally Posted by fast68plymouth

Put a 4.25” crank in it...... then you’ll be closer to the 500hp goal with the “warmed over” type of build.

Yea.
0.030" overbore to 4.28" will give 489 CID
0.060" overbore to 4.31" will give 496 CID

For your goal, I would leave some more metal in the cylinders and bore +0.030" to 4.28"

1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1