Recommendation for Forged Pistons and Connecting Rods

About 7 or 8 years ago, I modeled a front mount throttle body EFI intake for the Slant. Not much interest so I made and cast one for the Chevy 6 cylinder which was hugely popular. Now all the Slant guys want EFI......and have a short memory!
I was unaware and ignorant. Had zero interest in a slant or anything EFI until the last 18 months.
My son wanted to build and work on his “own” car which prompted all this craziness. I always want options and don’t know there was anything else and I lack the ability to mill the flanges and set the runner tubes appropriately. I’ll bet you could still move em like hotcakes as Gill welding is on at least a 4 month turnaround time