If it is for sure the factory dual exhaust and not a conversion they just gave you a rare Corvette manifold that most people have to pay more for than you paid for the Fentons.

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.