depends on the pistons . and the heads .
with stock style dish and decent heads your around 240-250hp
with flat top pistons your around 275hp
if you have vortec heads you can be well over 330hp-400hp
Need more info - cam specs - intake type - compression ratio - valve size - headers? - type of fuel
Rebuild the carb or replace it.
From 350 to 450 depends on carb size and how big of cam u use and put headers on it and a good high rise intake and a 750 Holley to get over 400 and 400 torque Get the thinnest gaskets for those heads u can use and have them ported and polished .
The choke could be in need of resetting, the floats could be off specs, your carb probably needs rebuilt or replaced.
Check the intake for a bad gasket. Too much air getting in.
Impossible to answer as there are too many variables. You wouldn't know unless you dyno'd it.
A complete engine with flywheel, headers, intake, and carb will weigh around 520 pounds.
275
A 350 SBC with aluminum heads and intake would weigh approximately 450-500 lbs. Adding carburetor, headers, alternator, water pump, and other accessories would increase the weight to around 500-550 lbs.
274
There are many ways to find out exactly how much carb intake you should have a day. There are many online websites to help you decide if a carb diet is rite for you. A popular site for all your health questions is webMd.
you use carb. cleaner and a shop rag . take the air intake tube off the throttle body. open the butter fly and clean all the black cabon off. you want to be carefull not to spray to much carb spray into the intake. you will have hard time starting the car if you do. sray in and wipe out till it's clean