Went to start & my MSD crapped out. No spark. Several sources claim they are unreliable. I hate unreliable & don't want to buy one plus a spare to not get stuck somewhere later on as others have actually done   I'm looking for input on using coil packs or more so SDS's coil packs? I can upgrade to their driver box & coils but would also need a diff. Hall sensor and 2nd magnet to pulley wheel, adding up to more $$$. Still less than 2 MSD 6 ALs.     Otherwise is a Mallory box a

Starion conquest knock sensor part#MD109942, $40+shipping        

Boost sensor, $40+shipping  

Came off of parts car we bought. $75+shipping OBO