1. Supercharger drive
1.1. Ratio
2. EFI
2.1. Ignition
2.2. Battery
2.3. Fuel pump
2.3.1. E85 compatible
2.4. Injectors
2.4.1. 70HP on EFI total 71lbs\750cc
2.4.1.1. List of injectors. Stan Weiss' - Electronic Fuel Injector (EFI) Flow Data Table
2.4.1.2. two injectors
2.4.1.2.1. Bosch 0-280-150-043 from BMWi6 31.6lbs/hr
2.4.2. 99+ GM truck short and stubby
2.4.3. EV12 vs EV6
2.4.3.1. EV12 longer, arguab;y better spray pattern
2.4.4. Injector positioning
2.4.4.1. intercept angle not to exceed 45deg
2.4.4.2. https://www.hotrod.com/articles/hrdp-0704-pitstop-fuel-injector-location/
2.5. Throttle body bore size
3. Similar Projects\VC460 and Big Block
3.1. Supercharged 212cc Think Tank / Idea Board - DIY Go Kart Forum
3.2. One more chance for the big block
4. Superchargers
4.1. AMR300
4.1.1. 14x15x20 cm
4.1.2. Approx $200 landed
5. Internals
5.1. .027 MLS Head Gasket $20.99 Gasket, Head, 420 to 460cc (92mm), MLS .027'' 3-Layer
5.2. Upgraded head Fasteners
5.2.1. $83 including side case studs. Stud Kit, Head & Side: GX270, GX390, & 420 Predators
5.2.2. ARP bolts $28.99 Bolt Kit, ARP 12-Point Chrome-moly Steel, Head Only : GX270, GX390, & 420 Predators
5.2.3. $82 ARP Bolts Head and Sidecase: Bolt Kit, ARP 12-Point Chrome-moly Steel, Head & Side Cover: GX270, GX390, & 420 Predators