Well its time to put in a large purchase at summit and i'm just making some final decisions.

I'm wondering what MSD box and Coil i should purchase. My old engine had a Digital 6plus but i know that wont cut it for the new engine.

New engine is a 650ciB1-TS Alchy injection with Rons Dual terminators. I just checked the compression and it is 15.6/1. I talked to MSD and they said the Digital 7 plus would be fine for what i need. What coil would work best, two are recogmended but the only real difference i see is like 50$ between the two. If i can save the $$ i rather.

Remember this is for Truck pulling.

Thanks

Doug