I used a good stock ext. coil HEI (off a 75 model car) as opposed to the petronix, I got the dist for like $20. I can use the reg. V8 parts, ie weights, vacc. advance canister and module. I really like that. That being said put a Petronix in my dads boat and it was super easy and worked great. My though is if the dist. is in great shape go petronix, if not I would go with a new HEI set up, but I do not think you could go wrong either way.
