318 build for light weight BCuda 4 speed car

1/4 or 1/8 mile car?
What size wheel and tire will be raced?
Exact, if possible compression ratio?
Any porting work on the cylinder heads known?
E.T. sought?
Has the block been modified for high rpm usage?
(AKA, blocked oil passages, opened up oil passages? Lifter bores modified, corrected, sleeved?)

I personally don’t know anybody drag racing with the O.D. transmission. Being that Chrysler swapped where 3rd & 4th ride inside the transmission, many feel that the trans is week in overdrive. I myself never had the chance to put the screws to one of those transmissions.

What is your finish line rpm at?

As far as a cam goes, this is a widely, subjective and highly opinionated subject. A known tire size and compression ratio would help a lot and to a long way.

For simplicity sakes, a solid tappet cam will do the trick.
Now it is IMO that the cam should not only match the engine combo but also the rest of the drivetrain set up with an ET in mind to help select a duration @.050) number to get the operating rpm band where it’s needed.

On lift, knowing where the heads air flow stalls is an excellent help in how much the valve can be lifted. On a race oriented set up, briefly exceeding max flow capabilities is ok and good.

If your looking for a maximum output for maximum speed and lowest ET, a custom cam isn’t a bad idea and a call to a place like Bullet would be of great help and no nonsense. You do need to have your ducks lined up information wise.

Your description above is a good general one but lacks important information needed for best results.

If you want opinions on camshafts just for fun use, you can get them here.