ronmanfredi

It is a low compression 305 v8- 155 horse engine.

You can lower the engine idle to set the timing which takes just a couple of minutes if you prepare everything, then raise it back to their recommended rpm.

You should have a VIN # on the drivers side of the dash where it meets the windshield. Take a photo of it and bring it along with the bill of sale to your license department and see what they say. You may have to get a bonded title.

Actually Bob's website mentions that both prefixes were used, but the sequence numbers that he has is correct, so it's whatever is on the Avanti VIN plate that counts

It shows this:

RQB numbers were not used in 1985. The correct number is AAV-4252 and is shown on Bob Johnstone's website as being owned by Jack White of Charlotte, NC as of 5/2015. You can contact him with a current photo and your information to update his registry: avanti5011@gmail.com

3.5 lbs is what my 82 held

If you are saying that gasoline is leaking onto the engine where the metal fuel line threads into the carb body, then the only reason for that is the fitting isn't seating correctly when tightening. If so, then double check the flare on the line and carb to be sure they are clean and smooth. If so, then you will use the new filter/gaskets PLUS apply about 3-4 loops of plumbers' tape around the threads of the "Nut" threads to aid in sealing. You want the tape to only be on the threaded area of the nut. Be sure both threaded sections are clean before assembly. A little rubbing alcohol used on the threads before wrapping and installing will help dry off the threads to help the plumbers tape do its job.

The 7 pin round plug is for speaker amp to connect to the radio. There are 4 positive speaker wires, 1 ground, 12V and switched 12V. The amp takes the 4 speaker signal wires and the single ground input and sends out a pair of wires for each speaker with a + and - for each speaker. (strange set up if you ask me). The radio also had a wire remote option, so I'm guessing that is what the board may be for?

Sold $39750!

The radio puts out a low-level speaker signal to the amp. The amp boosts the signal to the speakers. You need the amp to get any sound.

I'm pretty sure it's a GM screw in cap. Any auto parts store should be able to supply a cap.

Your carb is leaking at the well plugs and the float is iffy if stock. You can get all the parts that you need for your carb model at: https://quadrajetpower.com/ This Texas based company only offer service and parts on Qjets. You can supply them with the carb #, which is on the main body of the carb and they can send you whatever parts you need exactly for your carb. You can also call them for help.

Jim, Here are my thoughts on where you are. First, you want to set the electric fan turn on temp at about 180-190, turning it on before the thermostat opens does nothing. It should also come on with the A/C if you have one. Next, I'd remove the thermostat and run the engine without it and see if the problem still occurs. If so, and assuming the water pump is good, then you have a blockage of rust in the engine block or a leaking head gasket or cracked head. There is a tool available that can detect for a blown head gasket/cracked head by detecting exhaust gasses coming out of the radiator cap area when running. (I'd check for that with the thermostat removed so you are fighting the thermostat). If there aren't any exhaust fumes in the water, then a blockage in the engine block is a probability. If this is true, then you can remove the rear most freeze plug on one side of the engine block and get as much of the rust out of that side of the engine. Install a new plug and then do the other side of the engine block.

The amp on mine was attached with double sided tape. Wire harness plugs into the amp so once I got it loose, it wasn't hard to get out. Then the radio was next. There wasn't a rear bracket on the radio on mine, but there should have been.