[chico]

Hyperutectic are fine if you do not plan on major power adders...otherwise I recommend CP pistons, supposedly a lot of Nascar drivers are using them . My last motor is now running 8.3 CP,s ....recommended by Hamilton Clark Ind. out of Sac. Ca. They build nothing but Mustangs, Cobras, Ford Lightning's and Vipers.
So far have not had one blown motor they have set up..incul. 1200 hp lightning, 823rwhp Viper and one of their most recent ..a

33 rwhp Black Cobra coupe the just turned 10.2 @ 133mph.