eat a v8

ok new head & gasket water pump timeing belt etc set timeing start car warm up make ujusmet running great30 mints in small exhaust leak behind turbo no problem to fix then car quits. have spark just no powerto fuel gauge & or fuel pumps i know that car had half tank when project started what where to look my current thought is inert switch in back then fuel relay under drivers seat fuess in panel are fine the only other work done was new column switch was replaced just a plug& unplug situation are there any othere fuse links feeding fuel gauge /pumps ? location ? plase help

thanks hopefully can eat a v8 again

Laxdad

Do you have a fuel cutoff switch, such in a rollover? Wen i converted my bronco to efi i installed one and had a very similar problem to yours. I bypasses it and got power so ended up getting a new switch and haven't had a problem yet.