I have a 79 Spider Euro with Solex Carbs 40 adhe's. I am tired of them and want to go with webers. I have webers on the 67 duetto and really like them. My question is can I, should I, go to 45s vs 40s on the 79? What will it buy me and what will I be trading off. Other than being a 2000 Euro to begin with, I do not know if the 2 L is accommodating to the increased size. Will I need to be looking at different cams other than the expected euro cams? Thanks in advance for your advice.