13.3's to 11.8's to Forget it...
I used that MP 284 484 in the first motor I built when I was young. It was a low compression 360, 2.02 heads,home ported, with the MP templates . It was fun with a 9 1/2 inch converter. I put it in a $200 62 Ford pickup with 4.10s. I ran a predator carb for a while, and then switched to holley.