I read an article in my Custom Classic Trucks magazine recently that told how to do that on newer models. I will see if I can find it.

Toxictiki

'59 Apache 3100 panel (235)
'51 Chevy Fleetline Deluxe (216)
'48 Binder KB-1 (flathead 6)
'77 Cadillac DeVille (425 donor)

"Once I was 'Chairman of the Bored' then I bought a Stovebolt."