That should go 80,000-90,000

I hope it does. 👍😋

Could you order a QL code 3:31 non-posi with a L 78 ?

I'm not certain but believe 3:07 the standard ratio if the buyer did not specify a specific ratio.

This 323 from a '67 Chevelle was cast F 8 7 and stamped T0630 same as Steve's L78. Any known 323's cast/built earlier than these??

Steve is 4 bolt Chevelle is 2 bolt which means nothing but info.

Hmmm 🤔, got me thinking about my rear end housing code stuff. I remember Mike S. telling me he got the rear from Bob Harris. The ring n pinion is 3:73.Get back later.

QW rear
 

My rear housing code is QW 06 01 G1.
QW is 3:55 ratio. I know it’s a 3:73 because it had a chrome 12 bolt cover and I put an OEM black one on it. Counted the ring n pinion teeth while I had the cover off.
I’m sure Mike S. would not have bought n installed an incorrect rear for the car.

He wanted you to go a little bit quicker.

I don't track Camaros, but do track 66-67 L78 Chevelles. I have recorded the following legit 323 block 67 Chevelle L78's:

T0627EG cast ??
T0627EG cast either F57 or F87
T0628EG cast F87
T0630EG cast F87

However, 406's were still in use at the same time. I have recorded many legit 406's with June assembly dates, including several stamped T0627EG (including my 07B Coupe and my 07D ElCamino) and T0628EG.

Steve, was your yellow Chevelle a 323 or a 406? I have it recorded as T0705EX, but didn't have a pic of the casting no.