However much it will cost to buy an Ls series motor and install it with the f40 transaxle and adjust suspension to match. It will cost about the same to do this swap as it would to build the 2.8 to make that kind of power. I would go with the swap. There are incredible amounts of people online willing to help with any questions and a lot of build threads about doing it.
This not so rare but difficult to find part will have a cost set by the seller. Because these change hands so rarely you will just have to make a deal.
Sell it and buy a different car
They didn't make them with t-tops.
1985 Pontiac Fiero SE
You need to replace the valve, which will require removing the head. While there, make sure that the valve seats are undamaged, and since it is apart, you are better off replacing all the valves, as well as the valve stem seals. Check the price of valves, as they can get expensive, but most of your cost will be labor.
They dont make them anymore.
Turn the cone shaped knob on top of each motor. The lamps will slowly go down. This will get them down but you will then have to repair the problem.
Open your hood. Its in the middle between the AC aluminum thing and the brake booster. Simple one wire harness, these things are cake, 50 times easier on the fiero cause you dont have to sit on your head. Make sure its not the blower resistor first.
I would not attempt to put a twin turbo system on the fiero stock engine, as it will not be able to hold the boost. There is a company called designone.com they make single turbo kits for the fiero and they use Garrett and hks turbos, check them out.
Excessive high idle Excessive lean mixture.
your wife
It depends on what Fiero SE you own. There are two types. The earlier SE models, '84-'86, used a 85 mph speedometer for the four cylinder engine. It would not be until the '87 V6 model that the SE cars received the 120 mph "GT", as it's called, speedometer assembly. If you already have a 120 mph speedometer in your Fiero SE, it will work just fine. If it's the 85 mph speedometer, it will not, and would read incorrectly until you perform the necessary modifications to make it act like a 120 mph speedometer should.