The problem always arises --- because the "bigger is better" syndrome takes over --- which really SHOULD BE -- "THE COMBINATION OF PARTS" that all work together.
It's all about the combo.
Most end up with motors that are lazy and no fun to drive around town... because they built with all the top of the line WIDE OPEN THROTTLE parts.
In a street car -- where 90% of the time you're just cruising around -- you want TORQUE and you want TORQUE just off idle... you want to FEEL that power every time you tickle the throttle. Having a motor that makes a particular horse power number at the top of the rpm range in a street car is just no fun.
That's not to say you can't have decent horse power AND bottom end torque. But you have to plan the build with those goals. Otherwise you end up with just a pile of expensive parts that make a better boat anchor, than a motor that's fun and sounds bad ass.
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