NA will require those TFs heads, a well built 416, fast 102/102, -xx valve relieved pistons for a nice big cam.
On a mustang dyno I'm 545 on a dyno jet about ~595 with my set up. I'd have more if I could afford those tfs's lol.
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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