i m wanting to make 850hp ...... i have a 2004 chevy truck with a 408 ci. motor.... right now i m makein 550 hp at crank... with a stock intake and fly by wire tb.. i m getin ready to switch cams and change gears to get me up to 600hp or better.. and then i m going for a 250 shot to get me the rest of the way there...

what the best intake set up to do so...

Edelbrock Super Victor EFI Intake Manifolds ?
fast 90/90 ?
i m not even shure whats all out there that will work.....


and what kind of mod's do i have to do to make it fit?

 

https://www.performancetrucks.net/fo...play.php?f=158
( INTAKE MANIFOLD HARD DATA )




https://www.performancetrucks.net/fo...d.php?t=359987


INFO ON INTAKE SWAP

 

Hello!
We all talk rear wheel HP here since there is no real way to measure output at flywheel when the engine is installed.
What cam are you currently running and what cam will you be going to? I sincerely doubt you will make another 50fwhp from a cam swap (assuming you have a decent cam now) and gears don't really have much to do with HP.

 

425rwhp 456rwtq

i have 225/62 afr head
Duration at 050 inch Lift: 216 int./224 exh.
1.8 rockers
11and3/4 to 1 compression
i have 3.42 gears


i would like to put a Magic Stick V.4 239/242, .649"/.609" Camshaft
i m geting ready to up grade to 4.11 gears