egr or timing backfire

RustyRatRod said
Air cleaner OFF. Put it in D with foot on the brake and slowly open the throttle. If the pop is repetitious, as in EVERY time that cylinder fires, you have something keeping an exhaust valve closed. That cylinder will still fire, but it sends the exhaust back up through the intake. If that's what it does, look for things like bent pushrod, bad rocker arm, or unfortunately wiped cam lobe. This will NOT show up on a compression test, so don't even think about it. Just use my diagnosis as outlined.
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air cleaner was off which is how I burnt off arm hair, eyelashes eyebrows, and some up top, which bothers me more than anything else, I am running short of it, and i was trying to get it to move under power, but when it backfires it blows its self out