I will be installing a CC306 cam, CAI, Pacesetter LT's, TD's. I am wanting to port the stock heads but I was wanting to know if I will need to port the intake as well. Thanks for the help

 

definitely worth doing. I would gladly ***** myself out for welding/porting an intake if you are interested.

 

You don't have to, but it seems silly to do all that work porting heads just to leave the
upstream component unported. Match the ports to the heads The person porting your
heads would be a good candidate for that.

 

or you could just buy mine.....

https://ls1tech.com/forums/texas-members/816604-garage-sale.html

yes...you will want to port the intake tog et full benefit from the heads

 

Comes with a free "I got head from Ray@NitroDave's" Tshirt.
... ok .. not really ...

 

yea definatley port match the intake with the heads for sho!

 

I lost power when I put on a ported LE intake manifold on my old setup FWIW, I'll probably send my new unported one to AI if I get some spare money laying around, its definatly not high up on my list though.

 

or buy mine, its way cooler

https://ls1tech.com/forums/non-lsx-parts-sale/819908-ported-lt1-intake-modified-lt1-fuel-rails-capable-1000-hp.html

 

most people see 10-12 HP on a 380-400 RWHP set up with a ported intake.

Back to back testing on the same dyno are the only way to know how much you gained but most see this much gain and run about 1 tenth and 1-2 MPH faster at the track.

Milder set ups see less gain and more radical set ups see more gain.