Just read the thread with a lot of interest.
I have a Giulia Super from 1972 with a fairly warm motor.
I had the car on a rolling dyno last week and we were only able to get 146BHP out of the engine. At the same time it also had trouble falling back from high revs - settled at around 3.000 rpm every time.
Looks like I am in for either a new stock distributor or a 123.
It seems that there is a lot of advantages with the 123 in comparison with a stock one.
And while 146BHP is a nice power output in combination with the drivetrain, shouldn't it be giving even more considering the engine modifications - together with 46 DCOE Webers.
The car has been built for fast road & track days The engine, gearbox, diff and suspension have all be optimized with lots and lots of great parts:
High compression forged AE pistons 10.4:1 and the head has been shaved a full 1.2mm
Conrods/connecting rods have been blueprinted/balanced
Inlet valves are 46mm from BMW
Exhaust valves are 38mm stainless steel
Camshafts are Colombo & Bariani AR.ST1 292/292 degree
Rear axle is 2000GTV with LSD with a 1600GTJ 4.56:1
Front suspension has new bushings, adjustable camber, and hub, ventilated discs and 2-pot caliber from a Montreal.
The Gearbox is a special built unit from Finland - close ratio (FIA - specs) as GTA :
So my questions are:
1.) Will the 123 be the the right choice compared to a stock, rebuilt unit?
2.) Is there a chance that the new distributor will solve the fast idle problem - the carbs are in total balance and mixture is fine, if a little bit rich up through the rev range
3.) There is not a support for the carb. flange - can this influence the high idle speed?? Carbs are mounted with solid aluminium mounts and not rubber ones!
Any help will be appreciated.
Current - 1750 Berlina. Past - Giulia x 3, 75 Evoluzione, 155, 156, 146, Lotus Europa, Jaguar 420G and many more.