I'm in the market for some aftermarket rails for my turbo car and was just wondering who makes nice rails that out perform stock LS3 rails but still mount right up to the stock manifold. I looked into the FAST rails but i believe they need a FAST manifold. Any suggestions? Thanks.

 

The Holley rails are real nice. They are a 5/8 rail & are threaded for -8 oring fittings. Holley part# 534-209 has the correct brackets for the LS3 intake. Im running them on my super vic intake & really like them.

 

nice. thanks man. what pump are you running? i have a 340/LPH and i feel like that might be holding me back as well.

 

No problem. Running a single Walbro 450 for now.