Picking a cam and torque converter
It's a 1969 A108 with the heavy duty axles. The van is actually at the paint shop so I don't know the rear differential ratio. These older vans hang from the cross beam on an eyelid in the tail. I'm assuming I'd have to swap the tail from the 46RH.
The reao
How sensitive is cam selection? In other words, if I pick a cam that works for my 727 transmission and an appropriate torque converter today to get me an 70 mph cruising RPM of 2,000, will I need a totally different cam if I switch to a four speed 46RH in a year or two?
It's a 1969 A108 with the heavy duty axles. The van is actually at the paint shop so I don't know the rear differential ratio. These older vans hang from the cross beam on an eyelid in the tail. I'm assuming I'd have to swap the tail from the 46RH.
The reao
How sensitive is cam selection? In other words, if I pick a cam that works for my 727 transmission and an appropriate torque converter today to get me an 70 mph cruising RPM of 2,000, will I need a totally different cam if I switch to a four speed 46RH in a year or two?
