Alfa 2litre grp1 part2

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Now before anyone says I don't want a lumpy noisy car it's not it is how it should have been and specs were translated from French from loubet's mechanic whom raced in the 1973 production cars 2ltr  105
Please note carby selection this can't be done with 40 mm webers as they have a reduced opening of 37mm dellorto or solex were the better carb with 41.5 and 42mm respectively openings
Ok cam choice C&B  10.92mm lift ( no need to modify head ) set at exh102 deg inlet 104 their brochure says 110 but thats for high top pistons
Remember the bottom end is stock
Match port inlet and exhaust shave head to 9.5/9.7 compression( probably alrrady done over the years
The only other thing thing for head is a 50mm mandrel exhaust after the collector stock headers are good

Now the carbs 40 mm dellorto stock
Inlet fuel valve 1.75mm x2( runs out if fuel above 180 stock is 1.5mm)
Accelerator pump 38 mm x4
Venturis 34mm x4
Air correctors 210/205  x4
Emulsion tubes number 7772.8 x4 or 6 or 7 if you cant find them
Idle jets 58
Main jet 158 x4  (160 with no air cleaner)
This all combines gives you about 155/160hp depending on state if motor
Smooth idle not lumpy better fuel economy and now a top a rev limit of 6500rpm although i recommend 6200
And pend your gearing this gave the alfa at spa a top speed of 223kmh
Standard gear is around 215 kmh
But its so sweet and pulls from 1500rpm
How it should have been  but then they wouldnt be able to sell 2.5v6 as this is faster