[392Wrangler]

According to Rocky Rotella’s book a 70 Formula non RA should have #13 heads on it.
I’m confident mine has not been taken apart, but it has #13 heads on it.
I just pulled the motor and trans for a re-seal and it was Virgin on the long block. At one time the timing chain was replaced as I found all the nylon teeth in the oil pan and on the pick up screen.
Also this car has the M21 close ratio as is shown on the PHS. But a bulletin on Feb 9th 1970 (Again referring to Rocky’s book says you had to order the 3.73 gears set with that trans, but my PHS does not show Performance axle ratio. It does show safety trak though.
Any thoughts?
This was an early build car.