I have an '83 Z-28, I am swapping in a 350 next week. My manifolds are screwed, so I am looking for headers. My current system is stock Y-pipe, stock converter, custom cat back using a Flow-Tech muffler. Which headers will fit, and perform best? Do I need to get a new Y-pipe? (I also plan to incorporate a cut-out). Up until now I have been running with the cat-back system disconnected, it actually seems to work better.

 

I am very happy with my Edlebrock TES. But since I have the 350, if I could do it again, I would get the SLP 1 3/4", I know they are a fortne, but I think the larger 1 3/4" primaries would really help my car more now with the big cam. So, if you have the money, get the SLPs, but if not, the TES headers are very very good!

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End

Current Mods: LT4 Hot Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

7.5" 10 Bolt with 3.42s soon to come!