74 Challenger with twins

[YellowThumper]

Finish welding more of the cold side. More grinding than welding though.
Compromises everywhere. Wanted a smoother sweep into the TB, but intake tube is already close to header. Plan on welding tabs to it for mounting yet another heat insulated shield.
Top portion of tubes show are full welded. Left bottom open to allow for puddling the inside also.
Bottom cap will be lapped and can remain "ugly" and not seen.
Completing this portion was not in my immediate plans. Change of plans because as I am learning and dialing in the tune, I figured no need to "learn" twice.

[YellowThumper]

Being a bit burned out on cold half welding, I moved sideways to fun stuff.
Finally fired up 3D printer and made these air intake ducts.
Currently only PLA for cheap testing and refinement.
But... is it cool.
Next up will be interface adapter cone that tucks behind headlight ring and holds everything in place.
Inside area surrounding filters will be boxed in with aluminum.

[YellowThumper]

Modeled and printed the headlight cone.
Looks terrible in black.
Will try grey or silver similar to grill.
May add a bit more curves to tapered face.

[YellowThumper]

Redesigned and installed the cold air ducts. Better than the first black ones but still not 100%. Have plenty more pressing items so they are good enough for now.
Finish welded the cold half ductwork. Added blow off valve and bung for AIT. Upper visual side is welded outside and inside to provide solid weld for grinding weld smooth. Bottom face is just lap welded to keep as much weld as possible. IE keeping the ugly on the bottom.
Couple more small details and it is ready for some added atmosphere.