I am always conservative on cams.
Here is something you can try that is way easier and could solve your problem. Install some bleed down lifters. Rhoads is a popular lifter and they kinda pioneered the idea of a variable rate lifter.
You can use lifters made for SBC and they will not take long to install.
You will gain idle vacuum and torq at low rpm. Your cam should make nice power from 2500 even as it is.
I have my Thrifty Cam in the wagon's 250. It pulls like a mule from a dead stop.

Try the lifters, they are easy to do.

Last edited by tlowe #1716; 09/09/17 12:33 AM.

Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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