cam question

The carb numbers, if an OE carb, are on the carbs pad. Look at the front and rear if need be. Otherwise, the throttle plate size would be needed to know. I'd bet it a 600.

A cam of approx 214/218 intake and similar exhaust duration or a slight bit more will make that power for that time in the 1/4.

Like my Crane, 216/228 @ .050 w/.454 / .480 lift

(Stroked340, bet there stock 318 heads, no mods.)