I have 383 rotating assembly in a 4 bolt block. I am trying to decide on a cam.

I plan on going with a set of AFR 195 or 215's based on the setup i finally decide.

All these parts are going to be in a 93 camaro that is carburated. It is a SB1 truck block.

I already have a 9" with 3.70 gears, a TH400 with brake with different first and second gear, full exhuast.

I still have yet to choose convertor, heads, cam, and intake.
My goals are to be at 11.3 off the t-brake, but be driveable all year round.

I am trying to decide on a correct cam that will keep the shifts at 6500 or less. I really do not want to have a convertor in the car over 3000stall.

Anyone have some suggestions on a cam and which set of heads would work best. Intake will be a dual plane, either a edelbrock rpm or air gap rpm. Not sure if it is worth the extra 100 bucks.

 

hey this is like what i'm doing. I just orderd all of the lower end parts, block crank etc yesterday. Anyways, the AFR's are good flowing heads and with a good AIR Gap manifold and a big carb you'll pull plenty of air and fuel, a large cam would benefit best from this.

mostly evenone told me to go with a single pattern cam, you dont need that extra duration in the exhaust valves if you have a good flowing engine. I'm going with Comp Cams Magnum 292 H. It has a lift of .501 inch intake and exhuast, its pretty radical, but not too big. I think this will be perfect for your kind of buildup as well

 

But,, something about 235-238 with .58" intake and slightly longer exhaust sounds about right. I would stay below 240 at 050 for intake and keep LSA at 110 max. 108 will really wake it up.. (the 215head should have a little more gear than 3.7 really).

The difference between the standard RPM and airgap is less than 15hp.. and thats only at 6500 according to ebrock. You can accomplish almost the same thing by grinding down the divider and using a 1" spacer.

Or consider this guy
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1872071022

 

This also sounds simliar to my 383 i'm building for my S10.
I went with the Comp Xtreme Energy 300XHR. .560/.580 @.50. Also going to be running a set of AFR 195cc heads. Should be good for 500hp +

Nate

 

thats a nice setup Nate is talkin about. Its not a regular XE cam, its a hydraulic roller. I'd run something similiar to that. It might cost a little more for hr lifters but its worth it. Next best thing to running solid roller.

 

I am thinking of a cam in that lift range (nates) but i am looking for a less aggressive lobe seperation so it is not a harsh ldle.

I would rather give a few hp/tq and have it completly streetable.
I am not sure why cams for carb'd cars are on a smaller lobe sep, compared to FI cars.

I just have to decide on solid roller or hyd. roller.

 

If this fits what you want:

I have a Comp Cam 244/252 @ .050 and lifters to go with it that I can not use. $100 shipped I have the card if you need any other values on the cam.

 

tight LSAs (and big duration-6 of 1, half dozen of another) will not let it go closed loop bc of raw fuel at low speeds (too much overlap). It can be done. There are LS1-6s combinations running 230+ degrees with 112lsa.