I have a 84' Z28 H.O. L69 with a 700R4 and 3.73 open diff. I am going to replace the cam, add some headers, high flow cat, flowmaster catback. My question is about what size cam should I get to give me a decent amount of performance but is still 50 state legal (I live in Cali.)

My current cam is stock and the size is:

Lift
Int. Exh.
.403 .415
Duration
Int. Exh.
.202 .206


Lobe
Separation
114.5


Rocker
Arm Ratio
(115/-114)

 

TTT

 

i would use the comp cams 12-404-4,its mild enough to pass emissions,224@.050,464 lift......has the sound of a stock cam but pulls way harder..

 

Get the CompCams 268HE. My lg4 came alive with that cam and an open element. I have yet to rid the stock y-pipe too..

 

Read my post under "Horrible Gas Mileage", my LE9 305 runs great pulls much harder than stock. 100 hp better @ rear wheels than stock.

 

Look in my sig.

Plenty fast and just passed smog for the 3rd time. The whole setup would be legal in Calif. too!!

 

Hey Cheif,

Your going to love this...I'm a GSM2 (active). Also with an L69. Thanx to all of you for the help. I sincerely appreciate it.

-Boz

 

I'm a big fan of the Crane 2050 Compucam. Great power & driveability, runs clean (50-state emissions legal with a carb'd car), and with headers and new valve springs, it'll really wake up that engine.

Larger intake valves and some basic porting would also help a lot.