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do they both have the same type of boosters?


If you check out the close-up pictures on Jeg's web site, you'll see they all have downleg boosters. However, it appears that only the 950 body's boosters have an additional "step" machined into them (visible from the underside view) which improves fuel distribution.

There is also a 1050 main body with even bigger venturi, but (oddly, IMO) it doesn't have the stepped boosters the 950 body shows. I'd think this would be even more important w/ the larger venturi to improve response, etc.