Original 426 Hemi questions

[cheesepuffs2]

What about fuel?
Ive found non-ethanol fuel on the pump but its 90 octane, i know they were designed to run pump with the 10.25:1 but thinking 90 maybe too low.
Also they need leaded and thats MUCH harder to come by.
Reading around on the web has been less than conclusive if the additives actually do anything at all.
Pretty sure these cars NEED leaded for the valve seats. Not so much for the octane as they were designed to run on the pump gar of around 93. Fuel pointers would be great

https://www.redlineoil.com/lead-substitute

 

[Chris142]

Really, hmm that sounds doable. BUT i know nothing about carbs lol, im an EFI kid.
Ill look around for some info on that. Do i replace those or just clean em. The carbs seemed to be leaking from the edges where the all over tho. Top down, sides, bottoms lol.

You will need rebuild kits. Those will come with new needles and seats .

 

[ripcord]

From your description the carbs are over filling because the needle valves are not sealing against the seats. This typically isn't something you need a new carb to fix. Sometimes the old carbs had brass floats that would corrode and get pin holes so they wouldn't float, but many times, you can tap on the side or top of the carb by the outlet with a small hammer or a wrench and get the needle and seat to unstick and start working.

 

[joekingcorvette]

Love those 426 hemi emblems....very bold looking.