Originally Posted by southernculture
I am building a 350 for my rat rod, 1953 3 window chevy pickup, and I have a question on cam selection. I have the short block built. I have had the motor bored .040 over, new crank and .040 speed pro flat top pistons. The heads I have are 906 vortec heads. I had them worked, new springs and the heads cut to allow for .550 lift. valve job and the heads were decked. I am trying to figure out what cam to run. I plan on having a 3.08 rear end and the trans is manual. I want it to sound rough at idle and I want it to run well from at least 2000-6500. I dont have an intake or carb yet. Thanks for the help.
Read through this, I can sympathize with the rough idle cam, love the sound, but the Vortec head really isn't very happy with those old cam profiles. It is made for modern fast acting cams. While modern cam technology may not give that old school, cool, muscle car, sound; they git on with the show. You'd be much better off with a COMP XE 268 or a Lunati Voodoo 10120702. Depending on how you detail the engine out these cams make an easy 380 to 410 horses with a 350 and Vortec heads.
They are compatible with a stock torque converter, although about as far as you'd want to go, while delivering the bottom end torque a 3.08 axle will demand of the engine to make the car go decently from off idle to red line. The fast lift and fairly long LSA will not have the muscle car cam stagger but with the kind of compression you can build, the exhaust note will be sharp. Anybody that needs to know will know this is a motor to be reckoned with. The less informed ones can learn from your tail lights vanishing into the distance.