[Eljaro]

grinding the ports is exactly what I thought needed be done to match the manifold to the heads. That is quite a job , so I will try once more to fix the Blue Thunder. If it doesn´t work , I´ll get an Edelbrock and do the port matching and grinding. Thanks for your offer for a dual quad, but that implies to get an additional Holley plus all the linkage.
I have too many variables in the rebuild engine , and I do not want to add another one before seeing how everything works together. Thank for your tips, michael