Jim Sams came up with some additional info straight from Trick Flow:
quote:
190cc "as cast" finish intake port volume.
2.08"/1.60" valves.
62cc CNC profiled heart shaped combustion chamber.
2bbl port opening (has enough meat to port match to a 4bbl port).
Flows 300 cfm intake / 230 cfm exhaust @ .600" lift right out of the box with no porting.
Stock valve locations/angles are maintained so piston usage is not an issue.
Roof of exhaust port is raised .100", the floor of the port is filled in to remove the dogleg shape of the port. Header fitment is not affected.
Initially we will be offering a 1.460" dual spring (120lbs seat / 390lbs open) that is good for .650" lift & a 1.530" dual spring (138lbs / 430lbs open) that is good for .680" lift. Additional spring options to follow.
7/16" ARP screw in studs / pushrod guideplates.
cowboy from hell