adam1803

iTrader: (65)

That depends on how high you want to rev it and where in the rpm band you want to make the power.

Low_LSX

iTrader: (33)

Some thing that would work for a DD, Also for weekend track night.
Thanks

adam1803

iTrader: (65)

well basically the easiest thing to do would be use your truck intake. It will make good power down low but you won't be able to rev it very high. I think about 6k is the limit on a truck intake, give or take a few hundred rpms. If you go FI with it the intake won't be as big of a restriction as it would be on an N/A motor.

If you want a few more rpms out of it you could go with an LS6 intake, but you'd have to do the conversion to a car intake which is a bit of a PITA. Im using an LS6 intake right now and im happy with it for the most part, but it is holding back a bit of power compared to a 90/90 setup.

A 90/90 would be just about the best option for N/A, but alot of people don't like to use them for boosted apps.

Then you've got the Victor Jr. intake, which also requires a bit of work to make it fit and the money can add up quick for all the parts you need.

Low_LSX

iTrader: (33)

Also what size injectors are you guys running with your 408 setups?

Spoolin

iTrader: (8)

Quik was running 42/48's on his NA 408 and he said the duty cycle was somewhere around 76 percent

thunder550

iTrader: (70)

I'm running 96#ers, and at 10psi at 5700 RPM I'm at 56% duty cycle at 10.2:1 AFR, lol.

Quik

iTrader: (7)

for a NA 408 svo 42s are what you want. they spec out to be 48# injectors with our fuel psi. they are ideal and can be had for good prices of 250 used

and thats 76% duty cycle at 7k

blown3qtr

That cam oughta work fine. I'm runnin a 234/238 .598/.605 115+3 on my daily driver.

Low_LSX

iTrader: (33)

It's working good, I need to get a bigger stall.