:popcorn:Com'on Rusty, don't hold back,lol
The TQ did not come out until 1971. Which implies that Offy didn't factor it in during the design stage...... of a 1970 manifold.
The small TQ has 1.375 bores, the larger IIRC is 1.4375. The AVS IIRC were a tad bigger.
A 600 Holley I think is 1.5625, a 650 is 1.6875
By the time you get an insulated gasket on there, you should have plenty of room
