Ive a ptc 9.5 vert in the box that was actually speced for a 450hp stock stroke 360 and have a 4:56 gear so it might be close.

I actually liked the cam way back because in the early 80-s a 12 second street car was fun and quicker then most mis matched cars and far quicker then any older stock big block cars.

And for simplicity I can still use a good single spring.

For the $100 I paid for it I think im gonna run it, the worse that can happen is I spend a weekend to change it out, but I think it might do ok with a 12.1 comp ratio.