E303 Cam

[79dog]

I'm just wondering of much vacuum should a e303 pull on a carb 302.. carb is a 4160 holley 600 cfm.. At idle it holds 10#.. 3000 rpm it holds 15-17#..

 

[7991LXnSHO]

That sounds about right to me. Is the gauge fairly steady without big jumps at a steady RPM? Do your brakes work at idle? Is there any specific reason you are asking?