Cam question
 

I have a 305 with 416 heads ,edelbrock intake, 650 holley carb. what should a 272,454 lift 216@0.50 crane cam idle in park and drive......thanks

whats the lobe separation angle and intake centerline?. 800 rpm plus or minus? do you have air conditioning?

It depends on a LOT, if you have a narrow LSA and a crappy tune then it'll probably need to idle at 1100 rpm. If you have a wide LSA and a great tune it can probably idle at 600rpm. Having a loose or tight stall (if you have an automatic) can affect this a little also.

lobe separtion is 110 no air conditioning