Who makes a bolt in sumped tank to fit my 68.I would like something with an fittings already installed.

I know there are a few companies selling them, as I stumbled across them searching on this forum when I was looking for the same. Expect a minimum investment of about 6-800 for the tank alone. Completely custom fabricated units, are MUCH more. I did a quick google search, and places are charging about 550-600 plus shipping, for the exact same thing as we did, for less than 1/2 the price. I'd even venture to say, the quality of mine looks much better! I've seen custom fabbed gas tanks with sumps, start around 12-1400. Doing it the way I am, you save a boat load of money for additional parts, and are gauranteed a stock fit, using stock hangers, in the stock location.

For roughly $200 total, I was able to install a new Goodmark repro tank, buy the sump from Summit, and make all modifications myself. It is really, pretty easy to trace and cut, leaving enough metal to weld to. Then lay the template on the tank that comes with the sump, and drill out the correct holes, in the right places. Clean it as throughly as you can with soap, water, and magnets to remove shavings. It cost me right around 45 dollars to have the sump finished (tacked into place, and manipulating the straight edges to conform to the hills and valleys in the tank), as well as tig and pressure check the entire thing for leaks. Keep your old sending unit, cut the line, and block it off securely. The old rubber filler boot, secured to the other opening of the tank, a rattle can lid, the right size o-rings (2 preferably), and two -AN block-off fittings will seal up the tank. Those parts should run less than $15, you should have all, except maybe the AN fittings.

A good tig welder, is the most important part. I was lucky to find a friend of my fathers who is excellent, at a low-price. I can tig weld, as can many others, but it's best to let a professional do it! It's a pretty small job, and I was only charged $40. It took less than a day, and looks fantastic.

After the tank is welded, prime the area to make sure it doesn't rust. I primed and painted the entire sump, and about 4'' outside the weld onto the tank. Clean it again. Then you have two options for finishing the tank. You can order a gas tank sealer kit and do it yourself, or most radiator shops will do it. They will further clean, pressure test, and coat the lining to ensure the tank is good to go. The lining traps down anything in the tank you could not get out by washing, to keep it out of the lines/filter/carb. This ran about $60.
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To give a quick run-down for those wondering:

Summit stocks the new Goodmark tank for $139. Local dealers will normally be able to beat it. I paid between $110-115. Off-brands are even cheaper. Reproduction off-name tanks sell on ebay for 70-80 bucks! Tamraz stocks it for $100. We will use the highest price, of $139.

Competition Engineering Sump (1/2 inch or 3/8)-$61 at Summit or Jegs.

60-Cleaning/lining/pressure-testing

40-Welding/pressure-testing

15-Miscellaneous. Had everything excluding two -AN block-off fittings. You will need one anyways, unless you run a return line ;) For $15 bucks, you will probably even be able to buy a can of Du-pont Etch primer, and a square of scotch-brite!

$139
$61
$60
$40
$15
-----
315.

Knock off an additional $60 if an off-brand repro tank is satisfactory to you.

If you decide to run -8 AN fittings from the tank, to the carb, with a good filter and electric pump, you will wish you had this money. -AN fittings, are not cheap. They sell pre-made lines, but it's not too difficult to make them yourself, and it's a whole hell of alot cheaper! But, it will be done right, the first and last time you need to mess with the fuel system. Labor I didn't send out to a professional, totaled about 3 hours. 2 of which was figuring out how to run hoses for my first time. Buy lots of band-aids.

If the car will see any track time, run it to the outside of the sub frame the first time. Alot of tracks tech-inspectors don't like to see them under the car in case of failure. Most won't notice it, but one might, and it could ruin your weekend.

Hope this opens up another avenue for some DIY'ers wanting a quality product, and a much heavier wallet.

*Double post.

Try http://www.rickshotrodshop.com/musclecartanks.htm
That is the tank I think I will use on my 67.
Bob