Re: Q-jet pic of interest
A really good 800 cfm q-jet to get your hands on is carb # 10785212 used on mid to late 1980's HD emissions 454's and motorhomes.
I thought the 1980's q-jets were all electronically controlled ?
The most desirable would be the Edelbrock 1903, 1904, 1906 and especially the 850 cfm 1910.
Also the 1976-1978 M4M q-jets (on big blocks) were 800 cfm and the idle mixture screws were exposed.
The serial numbers- if you look on ebay - would be 17056*, 17057* and 17058*.
Here's a great article about Qjets that talks about the most desirable models:
67 Chevelle convertible, 138 vin, original 4 speed, bucket seats, Marina Blue with black interior