Open or with holes?

if you live near a autozone you can buy 1 that you swap out the center form open to four hole that way you can have and test both..they cost about 30.00 or less....but for your build i think the four hole is the way to go...be nice to try both back to back at the track..i never got to try from 1 to the other at the track to lazy i guess and car was running ok lol..wish i had..mike:violent1: