RE the heads: Those are the LS3 take off heads from Bob's Gibb Camaro. 2.20 Intake and 1.60 exhaust. They flow very well as stock and extremely well once we are done with the special multi angle valve job and CNC porting as well as chamber work and CCing.
We include new higher rate springs and titanium retainers.
While every part is upgradeable we have not found it necessary for our 600hp Stage II engines.
You will notice the carbon build up on a very low miles Camaro....that is from GM venting the crank case right back into the Intake.......most of the intakes we take appart are soaked with oil, but we have a fix for that too. [img:center]

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