Wow....
Intake manifold swap followed by springs and 1.8 roller rocker arm swap. Use the LS6 yellow springs, with Viton PC seals and any bolt-on rocker. If you don't plan on ever changing the camshaft, then go with the LS1 intake. It is a little better up to 5000rpm, after that the LS6 rocks up to 6500.
I loved my LS1 intake, with the stock cam and rockers. The engine was very snappy!
Headers will add a few hp up top, but you would get more of a gain with the intake manifold and rockers.
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Extra insurance for future mods, and a great drivability mod too.
man If i had the money and know-how This thing would be in my car...


anyone have one on? And where the **** would one go lol there's no room under there