Question

I have an excellent condition 1980 corvette with a 305 motor, 59,000 original miles, and original carb. It went from running perfect one day to not so good the next. The problem is that upon acceleration, regardless of how much, the motor instantly misses and bogs. It has no power at all. I have checked all vacuum hoses - no cracks or disconnections, there are new plugs at the correct gap, new wires, distributor & rotor, HEI module, PCV valve, fuel filter is not clogged, carb is getting a good flow of fuel, fuel pump is operational, oil and filter changed, carb has been cleaned and all linkage is operational, fresh higher octane gas,... all of this was in place before the problem started a couple of weeks later. It sounds as though it is a fuel problem but I cannot figure out what it could be. It doesn't seem likely a vacuum issue but I could be wrong. I do all the work on this car and have been through it with a fine tooth comb. Help! Lisa, Fairbanks Alaska