Just an opinion.I never liked the Carter 2 barrel carbs, their 4 barrel offerings however are great.If it were mine and I've done it before I would ditch it at the earliest opportunity.If you want a 2 barrel fit a 350 Holley or even a Rochester(some simple mods will be required).Or give that teen what IT REALLY WANTS...a good dual plane intake and 600 cfm vac Holley,Carter or edelbrock carb.