Vacuum Secondary Conversion

How many items would entail “all of it”? Just curious if you could break it down at all? Or is there an engine building book you recommend that I could learn from that goes through the process of a decent design?


Cooling system, ignition timing and curve, carb selection/tuning, flywheel weigh (for those of us who can operate 3 pedal cars) and chassis/suspension.

All of that conspires to allow unorthodox compression ratios.

Notice I didn’t mention cam timing??