5.3 vs 6.0 intake manifold?

[stngh8r]

i got port and polished stock heads, and switched to the TBSS 90mm intake and shaved over a half second on my 1/4 mile times, on motor. maybe that'll help with your decision.

For clarification: The ET change was with both listed mods or just the intake?

[mean05]

Did you use your stock fuel rail or have to use one that came with the intake?
If your 05-rail worked the 99-03 rail should fit too.

i have a 03...i modified the crossover rail and kept my return style rails, but going back on it and doing it over again i think i would have found a better way and used the returnless style rail that comes on the 90mm intake. Now i have gone over to a LS2 intake with some aeromotive rails...10x cleaner install

[mean05]

For clarification: The ET change was with both listed mods or just the intake?

his was both heads and intake...

[Botlfed]

thank you virgil

[PitchBlackC3]

i have a 03...i modified the crossover rail and kept my return style rails, but going back on it and doing it over again i think i would have found a better way and used the returnless style rail that comes on the 90mm intake. Now i have gone over to a LS2 intake with some aeromotive rails...10x cleaner install

I don't know where I came up with that 2005..haha.

How would you go about adapting the returnless rail? Use the corvette filter/regulator unit? Some other way?

[txarkitekt]

How would you go about adapting the returnless rail? Use the corvette filter/regulator unit? Some other way?