sounds just like my edelbrock
I have a performer carb,the same way--I had to convert to manual choke,because the bonehead I bought it from thought by ripping out the choke butterfly and all the fast idle cam setup off of it,his car would go faster--

--I didnt notice that until I got it home from the swap meet and tried to install it--I found a junk AFB I could rob the choke butterfly from,but I havent been able to find a fast idle cam and linkage for it reasonable,so I live without it..but it sucks without it--forget getting out of the truck to clean snow off the windsheild and expect it to stay running,until its been running long enough to warm up(10 minites in cold weather)...
I have a hard time finding the "sweet spot" for the manual choke too,mine runs without any choke even when ice cold,but it wont idle unless my foot holds it at fast idle,(even with the choke 3/4 closed)and if you try driving away with no choke and its still cold,it usually spits back and tries to stall--once the motor fully warms up,it runs great,it is very annoying to drive it this way in the winter--I've been tempted to put a Q-jet I have from a 425 caddy in the garage on it,to end this choke dilema,but it has been sitting a long time,and I dont feel like re-hashing the throttle and detent cables again...but if the edelbrock keeps icing up like it always does on cold rainy or snowy days,I might just find the ambition to do the swap...Its dangerous to pull out into traffic and have it snuff out on you..
