KyleLanter

iTrader: (2)

Alright guys I have some questions and after a ton of research I figured I would just ask. I have a 408 with ls3 heads and a fast 102 sitting on top. I am trying to figure out what fuel set up to go with. Now I have looked at fast rails, aero rails, and holly rails. I would like some advice of which is better if any? Also and more importantly to me what is the major difference between the ls3 style vs the ls2/6 rails? And could I run ls2/6 rails and injectors on an ls3 style 102?

Any advice would be appreciated thanks guys.

justanotherssuv

I would go with the fast rails. Cant be anything wrong with using a product that is designed to be used with another product..

KyleLanter

iTrader: (2)

Yeah that is true what is you opinion on the ls3 vs ls2 rails? This is on an ls3 application too.

Robert Cantu

iTrader: (2)

Idk I like the Aeromotive fuel rails.

JosephIV

iTrader: (14)

I have a FAST 92 and the Holley Rail kit with the included line. Good deal IMO. I can't say that they are THE BEST as I've only had three LSX vehicles and this is my first non-stock rail and non OEM intake setup. For $208 it was tough to beat. I have seen the Holley rails on 102's. Not flashier than others but usually a bit less expensive and it works.

s-350

i put a set of aero rails on my 102 then used oven cleaner to remove the anodize and polished them...they really set off the black intake

KyleLanter

iTrader: (2)

Great advice guys I know I am leaning either holly or fast from a cost stand point. Does anyone have a preference on the style injector they are running? If I am not mistaken some injectors will require spacers? Also the ls1 harness runs ev1 connectors right?

justanotherssuv

Spacers are solely determined by the injector. There are 3 different lengths I think? I ran FIC top side spacers with my LSA injectors and now again with my FIC 60# injectors (LS3 style I believe). If you have to run spacers, make sure to get ones that get installed on the top of the injector.

KENS80V

iTrader: (16)

The stock LS2 fuel rails were carried over to the LS3. They are the same.

Nasty N8

iTrader: (33)

We make Billet mounts for all 3 size injectors.

http://www.nastyperformance.com/shop/nasty-performance-fast-lsxr-102-short-injector-billet-block-fuel-rails/

jasonz28camaro

iTrader: (13)

If you have not yet got rails checkout http://fasster.com. Not sure if he's a sponsor but a cool guy. They sell them on eBay but are really well made. I got a set of the LS3 rails they make and I have the same setup as you. I had to use the fast spacers when using the rails with the 102 and LS7 injectors. Ls2 length injectors would require no spacer.