Torker 2 vs Performer RPM?
As for the intake. typically a single plane intake will work best above 3000 rpm, not very good below that. Its a total combination of all the parts. A few mismatched parts and the car will be a dog. You will spend forever chasing it with new parts.
Exactly. The OP's vaccum numbers indicate a not-very-mild cam, and combined with a single plane, the low end will not be good. There is nothing in that combination that will make low end torque. The use of dual planes with mild to wild longer duration cams works because the smaller and longer effective runner size will compensate for the cam's poor low end performance to some degree. (But then the increased high flow restrictions of the dual plane may choke off the cam's abilities at the high end.) So the overall RPM's range will get lower but will still not be very wide, and a WIDE RPM RANGE is what you want for a good street engine.
If streetablity is the goal, then the OP, IMO, would be better to keep the Torker for now and first change cams for a torque cam. This will still allow the engine to breathe at higher RPM's due to the high lift of the torque cam, and yet the cam will control the airflow at low RPM's with shorter duration and wider lobe srpead to make it good on the street. I have done this combo before and it is the way to go for a street car, IMO.
So called torque cams are still ground to get you pretty good airflow at higher RPM's; the race cams are set to get the MAX airflow and power out over a limited, higher RPM range and are matched with gears and converter for best ET's. But that is not the #1 objective in a good street drivable engine; wide RPM range is the goal. Guys get so caught up in the high duration cam and maximum horsepower numbers thing that they never back up to understand why to do a different combo for a different application, and to learn that ther are other excellent cam/intake/valve/exhaust combos.
And I am assuming that since the OP says he will never drag race the car, he wants better srteet driveability, but I would ask him to correct that idea if I am wrong.
