One thing leads to another... mean 318?

If I was doing a big bore teen, I’d stay with a solid cam and see if a bigger than 3/8 pushrod will fit. Mildly worked Edelbrock heads would get the nod since I have a set sitting. Though a well done 340/360 would do really well also.

IF I could actually get to a 4.0 bore size, that would be a 332/333 IIRC. Even at a .060 over bore, it would be 327/328 cubes. I call that my minimum CID I want to play with just for the fun challenge of a small cube engine.