Off the wall builds,that actally run......

Back in high school, early 80's my buddy had a 70 nova.
350, 4-speed, 4.56 gears it ran really good.
One night it popped a head gasket, we tore it down and found.
On the drivers side it had dished pistons, flat tops with valve reliefs, and a domed pistons.
It also had solid lifters and few hydraulic lifters.
Threw it back together with a new head gasket and it still ran like a raped ape.

I sold a buddy a 413 hp and when he took it to the machine shop it had standard pistons in 6 holes one .010 over piston and one .030 piston.