I like the latter of the two, the Crane....try one more thing...call Howard's Cams, 920-233-5228...speak w/ John or Scott, or anyone else for that matter. Tell them exactly what you have, and what you're looking for...be truthful and dont exaggerate anything. They'll set you up with something that will work great, and you'll love the price (You're paying for a lot of promotions with the other two) Ask them if #122441 would be a good choice...that's the one I would pick for you, but see what they say. That one is on a 112 LSA, but if you want it on a 110 or something else, they will grind it for you...still for less than the others. Ask them how the different LSA's will affect your engine, and see if that will work for you better. If you end up calling them, shoot me an email and let me know what they tell you, I would be curious. The rest of your combo sounds pretty good. I think a vacuum secondary carb would be good, but lots of others like the double pumpers... Vacuum will give you better mileage, but that is gonna suck either way, so dont base it on that!! Let me know how you make out. John