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I have a 2000 Heritage with 22,000 miles. Interested in a major upgrade to improve torque and reliability. I am not interested in gross horsepower so items that only impact performance above 4000 rpm are not the direction I want to go. This upgrade is to improve ride-ability under heavy loads both freeway & intensive mountain roadways. Two riders, lotsa luggage. I find myself downshifting and high revving much more then I would like so have been looking into “torque†solutions.
When I take what I read to the shops for quotes, I get conflicting and differing opinions. The issue is "bang-for-the-buck". So far it seems that the cams get replaced with gear-drive cams and the pistons get changed for 95cin. I want to stick with the factory carb and Vance & Hines pipes
The "question" is if anything should be done with the heads?
How about the intake manifold? Or the air cleaner backing plate?
Assuming that you have done the usual things allready like jetting changes, stage 1 air cleaner and mufflers to wake it up, short of opening up the engine, with what you are looking for, a primary gearing change might give you what you are after. It will increase your rpm's at cruise by about 300 rpm's but give you better bottom end and more acceleration. If you pick up the september issue of hot rod bikes, they have an excellent article in there on just such a swap on page 42 with all the gearing numbers and what they can do for you.
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