Center/Front/Rear Mount Adapter

[dave w]

Holly has drawings available for the TBI.

https://documents.holley.com/gm_2-bbl__3_bolt_.pdf

Holley has drawings available for the 4150 / 4160 squarebore.

https://documents.holley.com/square_..._4150-4160.pdf

Holley has drawings available for the Spreadbore

https://documents.holley.com/spreadbore.pdf

dave w

[geewhiz]

THANKS DAVE!!!! Those will come in very handy as I try to make an adapter. I think that is the route I'm going, I'll make an adapter, and not use the "water doughnut", I think that's what I've heard it called, the stock 7.4L adapter.

[geewhiz]

I've made a plywood prototype! I don't have a manifold to test it on right know, but it fits the TBI nicely! Aluminum model is in the works. About TBI placment, the Holley info says to put it in the forward/primary position.20210725_135548.jpg20210725_140355.jpg
I put mine in the center.20210928_130706.jpg
20210724_090056.jpg