What was the difference between the UC starfire with the varajet carby and the VC commodore with the varajet carby .My friend with the 4 and 6 cylinder commodores copied the relevant pages from his workshop manual for me as I thought there might be a difference in size or jets to the starfire[my workshop manual] but they seem to be the exact same pages[ Gregory's manuals] .The reason I asked Terry is because you said there was a huge improvement in the fuel system .After running a single 1 7/32 Stromberg for 20 years and having the motor breaking down when the throttle is held open for extended periods ,I decided to try and improve the fuel system by changing to a varajet . I know most people will laugh but I thought I would ignore everybody and try it just because I like the idea of a vaccum secondary and figured the people who complained about these carbies were people who have had a dodgy one and as my old van is only 179 and there was no difference in jets or size between 4 and 6 cylinders [202] I figured it would power it ok. Adapted it to a hi-torque 350 holley manifold and adapted a sports air cleaner to it. I already had the manifold and the air cleaner so the carby cost me $10 on ebay and the adaptor cost me less than $6 in aluminium and some time to cut out . Its a huge improvement on the old Stromberg . Haydn
The term 'fuel system' is how they put it the GM-H blurb, however in reality it was more like camshaft/ignition/head/tuning improvements. The VH version also had air injection & a primitive form of electronic ignition.
Whatever they did was an improvement, the UC Starfire was a disappointing thing to drive in many ways, but the Commodore 4 was much more user friendly.
I'm a big fan of the Varajet carby, they are basically a 2 barrel version of the Q-Jet. When set up properly they drive well & are a good economical choice for a Red carby upgrade.
Dr Terry
