Looking for some guidance on spark plugs. I'm not a tuner at all but am looking for ways to improve. The motor is 330 ci with worked ECZ-G heads & a Snider cam. Has an Edelbrock duel quad intake with Carter WCFB carbs. Has an old Mallory distributor with a Pertronix kit. I was currently running Autolite 45s gapped at .040mm. The engine tune is okay but has room for improvement. It's wanting to load up & fowl plugs. Would a hotter plug be better? More-less gap? looking for guidance.