Originally Posted by pjmoreland (Post 9010238)

Thank you for the kind words, guys.



I gave the filler neck a good hard shove inward, and I tried twisting it, but it feels nice and solid. I think it's going to stay put. I cut the pieces out with a jigsaw, and I used a hand file to clean them up. I also bent the bracket in a vise with a hammer. These methods are miserable, time consuming, and the end result looks very much like a prototype. I don't care to repeat this process. I will, however, put together drawings of the ring and bracket and have a machine shop quote to have maybe a batch of 10 pieces made. Then all I'd have to do is weld them together and paint them.

What year is your K10? Does it have a non-EEC tank?

Originally Posted by MDFarms (Post 9010292)

My build is a 1972 K10, when I bought the project it had a new 350 TBI that the guy bought in 1991 according to the receipts from a GM Dealer in Az. The throttle body is a Howell set up with computer. I removed in cab tank and bought the Boyd tank with Stealth fuel pump, rollover vent, mounting kit and fuel sending unit. The pump that came with the Howell TBI I believe was a 15psi inline pump that bolted along frame and covered with a stainless cover. I'm hoping to clean it up the final instll by using the Boyd tank and in tank pump.

Originally Posted by pjmoreland (Post 9010298)

I guess it doesn't matter too much of you had an EEC tank in the truck originally. You'd just have to get a new non-EEC filler neck seal.

Originally Posted by MDFarms (Post 9010313)

Not sure what you mean by non EEC filler neck? I have the outer grommet though. I will order the filler neck as you did as thats a great idea! I was going to cut one off my old tank but its still a good usable OEM tank.

Originally Posted by pjmoreland (Post 9010315)

The filler neck on 67-70 tanks is 2" in diameter, whereas the filler neck for 71-72 tanks is 1-1/2". Here's a screenshot from gmcpauls.com.

https://gmcpauls.com/fuel_tank_&_related.htm

Originally Posted by MDFarms (Post 9010317)

Mine is a 72 so what did you use? So is my filler hole in truck body same size and just bigger grommet? Never realized there was a difference.

Originally Posted by pjmoreland (Post 9010323)

I used the 67-70 style grommet. I believe the hole in the cab is the same size for 67-72.

Originally Posted by AllGoNoShow (Post 9010325)

One thing I didn’t “get” with this install is that aeromotive recommends 10g wire and a 30amp fuse (even though they say the pump only pulls amps in the teens), yet the pigtails from the actual in tank pump are 14g, which you would think would be a concern if the wire actually saw anything near 30amps. Then it brings up a question of whether a weatherpak connector is appropriate as they are only rated to 20amps (but a metri-pak is good to 30). Probably overthinking it here.
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Originally Posted by MDFarms (Post 9010328)

That would work for me as well. Like the thought of the bigger look.

Originally Posted by 68is4me (Post 9012107)

Thanks for the write up. I was just thinking about doing an electric fuel pump upgrade on my existing boyd fuel tank this winter.

Originally Posted by 67C10Step (Post 9015837)

Keep us updated. I always say the true measure of a vendor is what they do when there is an issue.

Originally Posted by pjmoreland (Post 9015962)

I sent them the video showing the leak. Dave Boyd said he has never seen that type of leak before. They are going to ship me out a replacement unit.