318 build suggestions?
What do you think you could get that 318 short block for ? If pretty cheap, could do Speedmaster top end with something like a xe268h cam specs on that 328 short block might be a little shy of 400 hp but still give you decent performance especially with a stall.
If not could do a zero deck 360 or even 408, even if you have to run less than ideal top end and replace that down the road. As long you have a good short block swapping top ends for more power ain't that big of deal, especially if planned right (pistons).