Smallblock Pistons: 1 question.....KB's -or- Sealed Power(SpeedPro hypers)???

Were building a street/strip 340 so i can introduce my kids into Dragracing.ive been into it for some time and i usually put forged pistons in my engines but im not looking for them to hop in a 11sec street machine, ya know? Just a healthy .500+/- cammed 340 with the obvious goodies, auto and maybe 4.10 or 4.30 gears. Thanks

Speed pro pistons are boat anchors. Biggest "problem" with 340 is piston weight. I used the KB flat tops with scat I beam rods and reduced rotating mass by more then 5 lbs.