Currently the engine is out of the car on a makeshift stand, and yes the w58's are round. I have a 219 head on the shelf and was wondering how it would perform compared to the W58 head. I rebuilt a carb about 45 years ago, so this is bound to be interesting. I'll give it a shot and see how it goes.
By the way, what's a 219 head worth these days?
Also thanks for all the great info, you guys are the best. There'll be more "I have no idea what I'm doing" questions to follow. 🙂