If my goal is to make some MILD upgrades to my '69 Cat convertible to make it a cruiser with nice performance (no races or anything) is it necessary to run anything other than the stock log manifolds? I am considering the factory long branch manifolds, but if they are overkill and I can save money, then I'll stick with the logs. Basically, I guess my question is how restrictive are the log manifolds as compared with the long branches, and at what point do you need to upgrade from the stock manifolds? Thanks for your guidance.
Dave
Amherst, MA
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