mean_greenZ

iTrader: (1)

does the 306 make good power throughout the powerband? does it still have pretty good low end torque? i know it opens an lt1 up alot through midrange and top end but does it still retain pretty good low end grunt?
also between 306, gm846 and gm847 which one is the better cam? i DD my car btw

Revelation Z28

iTrader: (10)

its a good cam, but if you like buying gas its not as refined as a 503. theres hundreds of topics in here on the 306 vs the 847.

seawolf06

iTrader: (8)

Very true. It's a big cam and it is drivable. Look at some of the newer designs such as the XFI cams or Lunati's Voodoo cams.

Blackbirdws6

iTrader: (7)

I have a heavy vert but it's def a midrange/top end cam IMO. In my cars case, I think it feels a little soft below 3k but once it gets going it pulls very hard.

-brian

mean_greenZ

iTrader: (1)

i dont want to lose alot of my low end but its got to wake up up top. i have been looking at the comp xfi cams but dont know a good grind. then one i thought had pretty good specs was the xfi 280. heres the specs:
Operating Range: 2000-6000 RPM
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°

roadhog_113

here is a pick of my cars powerband. I got a cc306 in it with 1.6 NSA roller rockers

Revelation Z28

iTrader: (10)

thats a nice slope!

mean_greenZ

iTrader: (1)

that is a nice slope! your still making 300ft. lbs. at 2500rpm! thats more than they make stock at the wheels and they still feel really strong! its also pretty flat torque curve!

mean_greenZ

iTrader: (1)

what about this one? it says its the biggest cam you can run with stock converter. would it give me a nice lope?
here are the specs:

"XFI" 268 Hydraulic Roller Camshaft
Chevy 262-400ci 1955-98
Lift: .570"/.565" w/1.6 Rockers
Duration: 268°/276°
RPM Range: 1800-5800
249-12-466-8

Ample low end with very good mid-range. Gear & exhaust upgrade needed. Largest cam possible with stock converter.
Operating Range: 1800-5800 RPM
Duration Advertised: 268° Intake / 276° Exhaust
Duration @ .050'' Lift: 218° Intake / 224° Exhaust
Valve Lift w/1.6 Rockers: .570'' Intake / .565'' Exhaust
Lobe Separation Angle: 113°

wrd1972

iTrader: (12)

Where it will feel noticeably soft is under 2.2K RPM relative to peak power and especially just above idle. Bigger cams will be softer down low but as you can see from the above chart it screams in the middle and up top.

Its a split for those you like this cam for daily driving and for those who dont.

mean_greenZ

iTrader: (1)

i know that the 306 idle is badazz! is the xfi 268 i mentioned above any good?