Unless your going over 7000 don't waste your time on milled divider. I have both a milled and stock and I ended up going back to divider as it will slighltly affect the low end performance. I know it will give bump less then .05 over 6000 but frankly won't run my engines over 6000 if not needed. But then agin thats my experiance and it was running with Holley Dbl pumpers not a TQ I ran a TQ for 5 years and never once got performance that a DBL pump will give but I also lost gas mileage using the dbl pumper. But frankly .4 or more in a qtr is worth it with a dbl pumper