If your gen V 454 short block is in good shape tear it down and deck the block to achieve a 0 TDC piston/deck clearance. Measure it first. ( its approx a .025" deck cut.)
lightly hone and Rebuild new rings bearings after checking/resize rods.
Mill the edelbrock heads to a 96cc chamber volume. (approx a .030" cut)
install with felpro GEN V block compatable head gasket
If you take care of these details, The cr will be 9.64:1
Comp cams Extreme mechanical roller street cam CB XR280R-10
Complete K kit #K11-771-8 you'll need to add pushrods and the cam button
This is a Mark IV block kit. Call comp cams tech for Gen V block kit.
Performer RPM manifold 850-950 HP Proform/Holley 2" 2-1/8" headers
The money you would have wasted on domed pistons and the more expensive dart heads will fund the roller cam and engine blueprinting/ freshening
You will get the performance you are looking for.
Make sure you got the thing aimed where you want to go when you drop the hammer on this one.