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Most of my 20s was spent really mastering cam specs comprehensively, and I did study all these side trails. Such deliberate compromises are not worth trying, no matter how tight your budget. Getting 90% of what you need from the salvage yard proves long term cheaper, reliable, and better-performing as well.
Most people really can't match a cam, a carb, and a cruise RPM, even if you give them a wideband, a tach, and a vacuum gauge as well. The rest give up too soon, while maybe 0.1% get lucky and accidentally stumble close enough.
It's not right to pay $400+ for a chassis dyno tune, better to go with a different stock engine that makes adequate power from a reasonable displacement. By that I mean that for cost-effectiveness, a 270 HP 4.8L LSx V8 beats a 275 HP 5.7L LT1 V8, for example.
Getting a V8 car to 30 MPG is no difficulty to do correctly, so I'm not giving up the cam specs for those '70s "miracle" cams.
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