Carbed 86 IROC-Z28 no spark from coil. there is power to coil.

SOURCE: 1987 camaro iroc z28

there is no main fuse in the camaros and by losing everything its telling me that you have probably blown a couple of the fusible links....they are in line in the wires themselves and look like a piece of black licorice nibs (hope you know what i mean) about an inch long and tubular if you cut out the link and strip the wires and strip them them re-connect them together you should restore the power.......these links are usually near the starter by the soilonoid in the group of wires connected to the big terminal....however i'm not sure how the backfire is related but that should restore the power to everything
hope this helps.........if not let me know ill keep your problem in mind til i hear from you again.....Good luck!

SOURCE: Starts then shuts off 84 camaro z28

Your Car May have a fuel Pressure regulation Valve, take it to a shop and see if there is an easy way to check it to see if you are loseing the pressure you need to push the fuel through the lines.

SOURCE: 1992 Pace Arrow Motor Home 454 Chevy...not getting fuel to start

After you dump the fuel in the throttle body it will continue to run on its own or die as soon as it burns up all the fuel you dump in? Do you have access to (Noid lights)? Are both plugs attached to the distributor?

SOURCE: not getting fuel to carb, mechanical fuel pump replaced.

SOUND LIKE STOP UP FUEL LINE.OR SOCK IN FUEL TANK STOPPED UP WITH RUST AND DEBRIS.YOU COULD HAVE A WORN FUEL PUMP PUSH ROD OR CAM SHAFT LOBE WORN WHICH DRIVES THE FUEL PUMP PUSH ROD.

SOURCE: I have a 1987 Camaro Iroc Z28 5.0 engine. I'ts

If its a throttle body intake, and he put fuel into it and that made it start up, then its definitely a fuel delivery problem, so replace the pump, and the fuel filter. The pump is in the top of the gas tank, and you literally have to unbolt the rear end to drop the tank so you're much better off cutting a door under the carpet in the floor of the hatch and just making it into an easy access door for future ease.If its a tuned port injection motor (which a real iroc z should be) then you wouldn't be able to test it that way because the throttle body sits sideways so you must use a spray can of starter fluid, spray it in there, and then try to start it. If it will continue to start for a few seconds then it is the fuel pump for sure. remember though, replace the fuel filter too or it can take out your new pump too. Trust me, I've owned two third generation Camaro's. hope this helped. :)