Thread: 350 Questions?????

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You should have zeroed in on the static compression ratio before choosing the cam.

Also, stock heads are a little lazy on the exhaust side, so most fellows will order a dual-pattern cam that has a little more duration and lift on the exhaust side. You can also use a single pattern cam with 1.5 rockers on the intake and 1.6 rockers on the exhaust. It's not something that will make a world-beater out of a street motor, but every little bit helps the combination. Be sure to closely check for valve spring coil bind, retainer to guide boss interference, binding of the rocker on the stud and valve to piston clearance.

Generally speaking, a dual plane 180 degree manifold such as a Edelbrock Performer will do a good job on a street motor with a fairly mild cam. If camming the motor for higher rpm's, a Performer RPM or an Air Gap RPM might be a better choice. If a street-strip motor with a loose converter and a ton of cam, a Victor Jr. or other single-plane manifold might be a better choice.

Up to about 5,500 rpm's, a 350 with Chevy heads won't need more than about 600 cfm of carburetor.