Well, many engines have been built that did not include much, if any headwork ie, porting, large valves, bowl work, etc... Its just that the benefits you gain from doing those mods further enhance your engines output, and is sorta' like an extra bonus that you wouldn't have gained without doing them in the first place. It is likely more a "what are your expectations" of this build, rather than doing these mods because it is just done out of tradition with no real goal as a target. I think everyone understands budgets, and only having a certain amount to spend. Just make the most out of what you can spend, it wont be a tragedy if you can't work it into your build at this point. You can always do it later if you have more cash to put in it down the road.
