Re: building 327
They have a smaller voodoo also, the 60100 cam is quite similar to your 1st cam you were looking at. I would not worry about low vacuum on any of theses cams. They are not very big. I would keep it smaller using those heads though. Those heads are good to get your compression up, but they are not going to breathe very well. (small ports) If you put too large of a cam in it, it will feel like you are hitting a wall and it will not RPM. If you stay smaller on the cam, it should RPM to the moon ! I would go 262 max.
69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1