ahh, yes, that casting# is why I said 68-76 4 bolt - it's 3970010, which the short list I have says is 302, 327, and 350

so I'm back to a switch! frown

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics