[Joe]

Regarding the throttle blades.... What was the specific number stamped into the original factory throttle blades? I am restoring my factory throttle body and I never set aside the original blades. Mixed them in with several other blades.
Thank you.
Joe

[Kenth]

A/T 7026074, M/T 7026075 or California M/T 7036175 carb?

[Joe]

Thank you, Sir!
Joe

[Joe]

All the throttle blades I have only have 6 digits. Are the above numbers provided something else? I was looking for the part number stamped on the blade itself.
thank you

[Kenth]

The numbers i gave are for the three different 1966 Tri-Power center carbs.
They all uses their own throttle valves.

A/T 7026074 uses valves with .055" bypass air holes, M/T 7026075 are solid, no bypass air or California M/T 7036175 uses .096" bypass air holes.

HTH

[Joe]

This is what I was looking for. Being a M/T I will use the no bypass versions.
Thanks again.
Joe

[Dick Boneske]

In nearly every case, manual transmission center carbs have no holes in the throttle plates. Nearly all automatic center carbs, and the California emissions carbs do have holes.

Usually, when restoring a Tri-Power setup for an engine with a can as lumpy as the 041 or even more radical, I use throttle plates with holes in them, manual or automatic. This is in adddition to calibrating the idle tubes, idle bypass, power valve, and throttle baseplate holes for more fuel flow at idle.