Mopekidd-3,
If you install a lighter set of springs ,it will give you more timing down low were your vacume canister is bumping up the timing now.
A stock distributors ---heavy springs ---won't let the mechanical weights advance all the way untill 3500 rpm's or more.
The light weight springs WILL LET THE WEIGHTS ADVANCE FASTER
(2200 RPMS)
If your running the stock springs then the canister will help,BUT why not install the light weight springs and see the differance in power.
This makes the distributor just like a mopar performance distributor that cost $132 bucks.
The springs are only $12 bucks.
Mopar installs the springs and charges you $132 bucks for a modified stock distributor.
Why do you think they sell this with all there crate motors.
Everyone is missing out if they don't have a performance distributor on there motor.
I am really surprized at all the people that don't have a advanced curve distributor.