318 build suggestions?

Rather than spend $2500 on a set of TF heads for a 318, I’d put 1/2 of that money into a 4” cast crank, a set of Scat I beams, and a set of stroker pistons for a 360 block and build a 408”.
I’d put the other 1/2 of the money into a set of SM heads during the Black Friday sale.
Then I’d be shooting for more like 450-500hp.