[KobaltBlau]

That is awesome, tom. I especially appreciate your posting the dyno info here because this is nearly 100% the engine I am looking to build. A couple of questions:

Did you have any trouble getting the Mahles to 10.5:1 during your build?

Is the muffler the type with two outlets that are in line with the inlets, and a factory type end outlet in addition? is there normally this big of a difference (say 17.5%) between megaphones and a good muffler?

what heads did you start with (78-79 SC)?

what size are the header primaries?

Thanks so much,