Will thunderbolt 5 ign. work in a IV??
 

I'd like to replace my 24 deg v8 module with a 6cyl module for the better curve but need to know before I try, will the 5 work? I know it's set for knock sensor etc but will it function like a IV if used on it???A friend has a 5 from a previous boat and I don't want to fry it or mine.