ok guys this is simple i want a better cam i have an 84 l69 with hooker hedders on and 3" back to some hooker mufflers.Which is the best cam for me...all sugestions will be considdered!
thankyou

 

While a larger cam generally adds power, it's not a power adder So more than likely, this topic will be moved to the general tech board. Good luck!

 

If it's truly a stock L-69 with a freed-up exhaust (still computer controlled carb and distributor) then I'm going to suggest somethign rather mild. A Crane Energizer 266 (210/210 @ .050, .440" lift on a 110* Lobe Separation Angle). Make sure to use the recommended springs with that cam.

Reasoning:

1. I've used that cam in a crapload of mild street motors and it works great all the time. Nice bump in both midrange torque and top end HP over stock. Stock cam duration is only about 190* so even a mild 210* cam is a pretty big change.

2. It's mild lift means it will not cause interferece problems anywhere in the valvetrain. You should use the recommended springs, but they will drop right in in place of the stock ones, no machining required.

3. It'll work with the computer controlled Carb, Distributor and ECM even though it's not OFFICIALLY a cam designed for a computer controlled engine. I know this from personal expereince.

4. Some will suggest a split-duration cam with more exhaust durtion and lift than on the intake. I have not found that to make any more power or have any other significant benefits vs. a single pattern cam like this one. BUT......... if y simply MUST have a dual-pattern cam consider the Crane Powermax cam that has a 210/216 @.050 duration on a 112* lSA. Very very similar but the wider LSA angle will give jsut they tinyest bit better idle and mileage with just a tiny fraction less midrange torque in an otherwise identical cam.