[Steve C.]

As an example and for interest here, this is very nice street build that made 650 hp with 535 cubic inches using 345 cfm Edelbrock heads with 2.250 intake valves. The cam here was a relatively mild 248 degree hydraulic roller... knowing that going to a solid roller cam you will need to add additional duration.

As in the case of this build in all likelihood the height of your intake ports on the proposed 340 cfm cylinder heads will require modifications to the Torker II intake manifold as done here. It will need TIG-welding for raised port tops in the intake, machined flat and port-matched. Nothing unusual.

https://www.hotrod.com/articles/ccrp...-alloy-indian/


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