Im open to the theory how about a build sheet showing some differences for the smog less Cobra Jets?
Like other engine examples I believe there would have been differences shown on the buildsheets so that the workers could tell one from another if there was a difference (no thermactor voe example)
One side note - surprised someone has not brought it up already. There was a set of "Canadian" Cylinder heads that were offered to an got approval from NHRA to be run in stock classes back in the day. Unfortunately for the discussion this was found later to be some trick heads someone slip by the organization rather than production heads according to reports some 30 plus years later
So let me ask in all sincerity, can we say one way or the other that the CN Cobra jets can without smog?
Pete haven't seen the "smoking gun" show up yet in this discussion or elsewhere. Just me
