I am slowly making a bunch of engine bay parts.
The 1:1 has a Greddy intake manifold with a larger MAF.
I used a RB26 manifold, smoothed it cut off the piping.
made some runners from an old 240z exhaust manifold since they are squared off.
Injectors are from an SR kit

I'll fashion the maf from the charcoal canistr/emissions thingy from a 280zx kit.