So lets talk about what works. What building parameters or "tricks" actually made your car go quicker. Lets limit this discussion to engine build options. Machining , accuracy of clearance, ratios, weights. Did that trick hone job pick you up? Straightening the lifter bores. Perfect piston ring grooves? Dead on rocker geometry? Every valve spring the exact same pressure? Bearing clearance to the .000X? Thin/light ring pack? Rod ratio. Light weight components? All this stuff is that it gets debated often in different discussions. Not talking about comparing to poor sloppy machining. More of good average stuff vs the best. My experience is if the above areas are decent the amount of improvement is next to nothing. My current motor went from .043" rings to .9mm, ran exactly the same. Then a new crank. It was 5lbs lighter. Ran exactly the same. Looking for real world track results.
Doug