Qjet building

[comp]

 OK,,is there enough ajustment to play with fuel

[Cliff Ruggles]

I'm not sure exactly what you are asking?

In any case, the large main airbleed Chevy q-jets are very difficult to tune, especially with modern fuel blends on high performance applications.  We have had excellent success installing the smaller main airbleeds, and our custom jet/metering rod set-ups. 

Basically, the large main airbleeds add too much emulsion air to the main system, and require HUGE main jets and very small metering rods to get a decent fuel curve.  They still don't work nearly as well as when the smaller main airbleeds are installed right from the start......Cliff

[comp]

sorry,,,was thinking about E85 mix's,
 if i set it up then add a 50/50 miv can i adjust for it without a major tare-down ??

[Cliff Ruggles]

Adding different blends of ethanol are going to require recalibration of the carburetor, since the ethanol does not contain as much energy as gasoline......Cliff

[Hotrodrobert]

1.5 rockers on your exhaust will help torque at all rpm.  The Air Gap intake will also make more torque and horsepower at any rpm above idle on you engine!!