Thanks for the info guys, I’ll track down the charging system problem this weekend, hoping it’s the battery! most of the engines I’ve built are SBC with the one wire alternator so I’m not sure where to start testing on this particular alternator, however I think I can have it tested without removing it??? as for the fuel gauge, I’m going to take the advise from edb1961 and calculate my MPG, I’ve replaced a couple of the in tank style fuel pumps and thats a picnic I don’t wish to be invited to!