383 needs more power

I would be happy with 320 at the wheels too. But it’s only 230 at the wheels.
You have 230 at the wheels ? you know it might be more. There are cars right here on Fabo that claim 400/500 at the wheels and only run 115 in the 1/4. lol
Don't buy in to dyno numbers, if it feels good to your butt, that's all that counts.
The secret is in the heads.