talgregory
If you are already using a two step and such and just want to step up the boxes output take a look at the MSD 6631 HVC box & the MSD 8250 coil. The boxes output is the same as the MSD 7AL3 and has the same foot print as a MSD 6AL. If you run the MSD 7AL3 be sure to use the MSD 8251 coil to get everything out of the box. Also a couple of headsup things about the MSD 7AL3 as for setup. You will find that once installed you will need to advance your timing 2 to 3 degrees to get the engine to run right. Also if you don't use the RET'S #1 - #4 make sure to have zero chips in each socket. If you don't the box will lose its mind and ruin your day!
