The car is equipped with the original E4ME Quadra Jet which I believe is a rather quirky system.  I don't really understand this carburetor although I have kitted several of the older quadrajets in years past.  What is that CLICKING noise we hear before the car starts?   Does it continue to click while its running?  The electric choke opens as it should, fully open in about three minutes, but the car stumbles and runs poorly for up to a minute after it's started.   Maybe we've become spoiled by years of driving fuel injected cars, but I can't think it started like that when it was new.  Once it's fully warmed up,  it runs great.  Is the answer a new aftermarket carburetor?  If so,  what is the best one to be used with a semi-computered Trans Am from 1985?  

What is the horsepower rating of this car's 5.0L  engine?

So far this project car has been sanded to ready it for a good paint job.  Lately most of its driving has been in and out of the garage.  My 17 year old son will be the owner as soon as he parts with his '91 Grand Prix.  I hope this is a good idea.