First time post, trying to confirm. Looking at a 1967 convertable with a L30 and powerglide, unable to find anything conparable on the internet. The vin # is 67-12667, it has a 10 bolt rear end, the block # in the back is 3903350 front 109I2MM, heads are 3890462. The car is badged and painted in the SS model. Any advice would be appreciated.