Help! I just can't figure it out.

Ok here we go 05 100xxx stock everything except mid pipe and cel is on but because of midpipe and I know that forsure.. Not flashing or anything. ran perfect before I stored it for the winter went to get it out of storage and it was flooded... Got it de flooded cleaned plugs put them in fired right up. They were new plugs and coils right before winter. Now car starts fine but when I'm driving it and give it just a little gas its sputtering back and jerking back and fourth until I shift into higher gear and Rpm's are lowered then runs good ( but not suppose to drive at that low rpm). What I'm confused about is I have all the power I have always had and if I bang through the gears almost redlining ir runs fine. Just when I'm cruising and press down just a bit on gas (like regular driving down the road) it's sputtering. And sometimes when I let off gas rpm with drop down very very low then back up to about 900. Sometimes even shuts off. Idles at about 8-900 and a little bouncy. Cleaned MAF, reset ecu new plugs coils(before it sat all winter) the only thing I have yet to get is plug wires. When I was de flooding I noticed on the plug side of one of my leads the metal cap that snaps on plug was bent so I grabbed needle nose and bent back to snap on. Is that my problem? Could it of broke in the elbow of the wire/lead ( whatever you'd like to call them). A lot to read sorry but I'm waiting on my wires and if that don't do the trick I'm not sure maybe ssv? Or fuel pump? FP filter? Or something else. If anyone could help I'd appreciate it thanks.

If I left info someone needs to help me out sorry I'm sure im forgetting something. I always checked for vaccume leaks and all looks good.

she still rips as it always has and I don't have rough starts or anything.