These are cast from a Monogram 1/24 Pro Street Firebird kit. They are a pretty nice detailed part on there own so they are box recast. What I offer is a super clean casting that I won’t sell if I see any issue. The only drawback is they are 1/24 an are too big for 1/25.
This intake used for the master started from the AMT 70 1/2 Baldwin Motion kit. The original piece didn’t fit the kit engine so what started out as simply extending it turned into an all out making it look like it’s full-scale counterpart. The 1:1 intake I referenced is the 1968 – 1969 Camaro Big Block Aluminum Intake Manifold, GM 3933163.