MSD, can you tell the difference?

I run an MSD 7al box and HVC coil, there is a BIG difference in cold idle from a MSD 6 box and wimpy coil/ If your going to replace might as well get the good stuff -better to overkill then under kill. Now you MUST use $$$ plug wires or they will breakdown/leak. Best to use an MSD dist also so no cross firing in the cap/rotor.

That was another $900 out the window but I got a bad *** ignition that fires 99% of this junk pump fuel.