Fuel leak question

[priobe]

I am running a 40 mm venturi.

However, as many have mention (Inglese and others) by moving up to a 42 mm you will only have to adjust your mains. I think differently I think more than likely you will have to rejet your mains stack as well as idle slightly, as Ejaro is experiencing.

My ultimate goal is to go to 42's them remove them all together ( no choke) just to to see what will happen.

Another item I dont understand is why would one increase the 48 to 51 to only put a choke back in it. You will then reduce the 51 back to what ever the choke is.

An I know the throttle body is not beveld like the choke but the 37 mm choke that many were running were probably more resticted than what ever turbulance the no choke would deliver.

Just my .02

[carmine]

Priobe;
The reason you would open to 51 is so you can put in a slightly large venturi and still have a tapering bell shape bellow the choke diameter.
This taper allows the signal strength to increase on the augsillery venturi as the air speed increases
With a large venturi and no taper at the bottom half of that venturi the car would have a tendancy to fall flat on its face when the mains are being asked to come on and get stronger.
A smaller air corrector would help also when venturi is larger with less taper.