I've seen A LOT of posts about making HP with a 318-So why is it so ???

I agree with 273 ut with stock heads a bigger cam than 262 (even 256 lunati or howards0) starts to take away from the low and low midrange
not a good tradeoff for a daily driver
you end up with super stocker type driveability- but boy do you have more braging rights horsepower
273 it's not about the small hp gain with the higher compression
it' about pulling the torque curve up for the whole curve
you feel the low end effect more
right AJ?

I agree about CR but a lot of people are dealing with stock long blocks, so cr is what it is or they want an engine that they can drop in and set and forget so for them 8-9:1 is gonna be where it's at and a few 10ths of a cr ain't gonna make much difference as other mods. For those that want to play with tune etc.. then crank up your cr.