Originally Posted by Hippie
Well, let's see.............
Do you see anything wrong with this picture?
A. Too much cam for the vehicle weight.
B. Too much carb for the vehicle weight.
C. Too much vehicle weight for the cam, carb and possibly motor. This is big block territory. The '69 Chevy wagons were killers in Super Stock but with a 427/390HP Rat motor.
D. Not enough converter for any of it.
The 406 cubes and 4.56 gears should make TONS of low end. Since he is saying things don't do so good until 3500, a loose converter would do wonders. A 2400-2600 should wake up the wagon.
I think the carb tune is OTL. Check your vacuum, size the primary power valve so the valve number is 2 less than idle vacuum. You probably can drop the jets down 2 sizes around. If you have sceondary power valve, use a 2.5 or plug it. You show total timing, the initial should be 12 to 16 depending on gas quality.