Without a doubt, Trick Flow heads. If someone claims a crack in a trick flow head I would want to see evidence. I hate hearsay. For street use the 240 are great already CNC ported and ready to run.
Pictures were posted.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
