Originally Posted by buggy305
sorry didnt see your last post thank you
ya the RPM manifold is flat out a much better intake manifold.
worth the upgrade. The holley 300-36 is another good one.
Once the cylinder heads are nicely ported the motor likes extra valve lift.
So if you happen to trip over a set of 1.6 ratio SBC rockers, they will help.
.484" net lift with your cam. (don;t loose sleep over this)
(The push rod slot in the head needs to be extended a bit towards the rocker stud)