Justin Gibbons

I have a 2000 ss M6, with Comp xr265hr-14 cam, lid, LT's, ory, and 3"borla. Last spring I installed when I installed the cam I also insatlled 918 spings, comp retainer, 7.4 chromoly push rods , comp x-treme lifters and slp double roller timing chain.

My question to all of you is what kind of intake and rockers if any, should I invest in since this is a small cam? (advertised duration 265in/271ex...lift .522/.529)

Should i even change the intake and rockers?

..And, even with the small cam, could I see some hp gains with a custom tune?

THEBRAD

iTrader: (3)

yes with a tune u will def see gains. everyone should have an ls6 intake, and if u really want rocker arms id say go for it 1.8 roller rockers. i asked about gains with these rockers and i think a guy posted like 14rwhp

Justin Gibbons

what intake should I get?..is the 90mm to much/

THEBRAD

iTrader: (3)

get the regular ls6 intake, only way ur gonna get a 90mm ls6 is through liggenfelter or a company like that where they cut off ur old snout and put on a 90mm unit. and if u were thinking about a 90mm fast lsx intake, they blow, they r super expensive and they make less power down low than the ls6, they just plain suck in my opinion ill probably get a bunch of fast intake owners on here being all pissy about that statement but its true look at dyno sheets of stock cars or cars with cams with lower duration

THEBRAD

iTrader: (3)

whats the actual duration of ur cam?

Justin Gibbons

Actual duration @ .50 212in/ 218ex, small cam

THEBRAD

iTrader: (3)

yeah thats pretty much like stock so u should in no way go for a fast intake. get some 1.8 roller rockers and an ls6 intake manifold and u will be really impressed. if u wait till april or may weiand is coming out with a new intake manifold thats supposedly supposed to be the best **** out there, 30 hp more than an ls6