Here's my video showing my recommended sequence for optimizing an engine using my full set of spreadsheets: Optimize Engine

Using Excel Spreadsheets
Two Stroke Modification Software

EXPANSION CHAMBER DESIGN & ANALYSIS
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SQUISH BAND
Squish Band Tuning
All About Squish Bands
Combustion and Squish Bands
PORTING
Finding Port Durations
Porting Rules
More About Porting
2 Stroke Porting Calculator (part 2)
Two Ways To Find Port Durations
CRANK BALANCING
My Latest Crank Balancing Video
Computerized Crank Balancing Basics
Equating Balance Hole Size for my Crank Balance Calculator
Single Cylinder Crankshaft Balancing Methods Compared
CARB JETTING
Jetting Overview
Keihin Needle Decoder
Measuring Keihin Needles
Main Jet Selection
Main Uses of Jetting Calculator
Using Jetting Calculator version 6B
Jetting Calculator 6B - part 2
2 Stroke Main Jet Sizing - Advanced Method
Jetting Mikuni VM/TM with Jetting Calculator
Jetting Dellorto with Jetting Calculator
Using Jetting Calculator for Keihin Carbs
Complete Motorcycle Jetting Overview
Jetting Calculator Overview part 1
Jetting Calculator Overview part 2
Benefits of a Jetting Calculator
CARBURETORS
Fuel Atomization & Carb Sizing
Correct Carb Size Factors
Carburetor Torque Wing
ENGINE OIL
Maximum Safe Fuel/Oil Ratios
Premix Ratios by Oil Specs #1
Premix Ratios #2
INTAKE
Piston Port Intake vs Reed Valve
CDI
About 2 Stroke CDIs
CDI Ignition Timing
KDX200 CDI ignition timing
VARIOUS
High Engine Compression
Piston Port vs Reed Valve
Crankshaft Balancing Methods
Fixing Pre-Powerband Power Dip