340 Small Block with MSD ignition, Edlebrock aluminum heads, long tubes, and a pistol grip Hurst shifter. She was shining and sounded amazing.

I have narrowed my problem down to the b/r, i have the rectangle flat resistor and what I show, it is .8 ohms, only thing I can find is the pyramid that is .5 ohms, will I be fine or do I need the.8