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You put in new coils, plugs, and wires? And its still not running right? What kind of coils did you use? Some aftermarket coils can be bad right out of the box. Just curious what kind of spark plugs did you use?  What does "after hot" mean?  Did you gap your plugs? Plug gap on a Lq1 should be 0.045.  Has the car been sitting? How old is the fuel?   

You should have what looks like this...... basic lower control arm covers all 1st gen W's from 88-96/99

Runs rough. New coils plugs wires after hot.

I’m pretty sure a regular 1st gen, or 1.5gen w body front sway bar will work. I’ll attach a pic of all the junkyards around that show a listing for a 3.4L (beefy) front sway bar. Car-part.com   And make some phone calls.   would help a bunch if you post some pics of your car and what broke.

Apparently I'm wrong again. You cannot change just the lower A-arms to adapt a different style of sway bar on your 1989 Oldsmobile Cutlass Supreme. Your 1988–1989 First-Generation W-body uses a highly specific, early-production front suspension setup. The sway bar has unique "looped" ends that slide directly over the front leg of the lower control arm, sliding into a thick rubber bushing pinned to the top of the arm. Why Switching the A-Arms Won't Work The 1990+ Redesign: In 1990, GM completely redesigned the W-body front suspension. Newer models use a sway bar that hovers above the frame and connects to the struts or control arms via vertical end links with small ball joints or vertical bolt bushings. [1, 2, 3] Subframe Differences: The 1990+ lower control arms will not physically line up or bolt into your 1989 engine subframe cradle. The mounting pockets, spacing, and geometry are completely different. [1] The Braking Threat: If you attempt to adapt or use a standard vertical end-link style sway bar on your original 1989 A-arms, the bar will swing wildly into your CV axles or steering linkage under a hard turn. Your Best Options for a Broken 1989 Sway Bar Because your early-style front sway bar is unique, you must replace it with a design intended for the 1988–1989 model years. Source a Used Factory Bar: Your quickest and most cost-effective solution is sourcing a front sway bar from a donor 1988–1989 W-body vehicle (Cutlass Supreme, Pontiac Grand Prix, Buick Regal) at a local auto salvage yard. Verify the Subframe Bushings: When installing the replacement bar, make sure to replace the main frame-mount bushings and the A-arm target bushings. If these bushings wear out and seize, they bind the suspension, which is usually what causes these brittle older bars to snap under stress.  SO, back to trying to find a specific donor car that no junkyard has. If anyone had any ideas i would greatlyappreciate it.