i did a Q jet conversion to a 74 bmw 3.0 liter years ago. probably no harder than doing the 2 barrell.

i had three different carbs on there before i was satisfied. i ended up with a all manual carb. manual choke, manual secondary operation. i used the jet metering rods from a 67 pontiac sprint (the straight six). i also bought a qjet haynes book for reference. (i am not sure it was haynes.)

you had to be careful not to open up the secondaries under 3000 rpm but when you opened them up she would scream all the way to the redline!

it was a big improvment over the original soles POS which i rebuilt at least five times before resorting to this.

the thing i had to jury rig the most was the throttle linkage.

if you do this feel free to pm me. i still have the qjet book.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.