My Iroc-Z has a 5.7 TPI and has run a best of 14.2 @96mph. It has factory original spark plugs, wires, coil, car/rotor, fuel filter. I want to change these parts out. Anybody have suggestions for new parts (maybe part numbers for hi-performance parts)? Or should I just replace with AC-DELCO GM parts.

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1999 Camaro SS LS1 m6 12.6@112mphw/1.9 60ft
1987 Iroc-Z 5.7 TPI best et. 14.24 @95mph w/1.99 60ft.
1984 Camaro

 

Well I don;t have part numbers for you, but I have seen so many mixed results inposts all over this board that it really is a hit and miss on some cars, your's might benefit from aftermark (MSD, Accel etc.) as it is still using the original, but you would have to do a search, there are some many pros and cons abotu aftermarket or delco stuff, it is really personal preference.

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1989 Trans Am GTA, L98 5.7L TPI, TH700-R4, T-Tops, dual cats, 9-bolt rear, 3.27, Dynomax muffler, K&N
1992 Camaro RS, LO3 5.0L TBI, T-5, T-Tops, 3.08, L69 Dual Snorkel, K&N - Sold

Honda engines ROCK, I have one on my lawn mower but I still have to push it.