Trying to build power....225 step by step help

Good luck with your project!
Turbo or blown are the ways to get that power.
Mild turbo will make the 250-275 without being too radical.

I had a chance in the 70's to buy a Orange 70 Challenger.
It was a friends car and he kept buying alternators.
I felt sorry for him, so I fixed his car.
Back then you just popped the hood and smacked the Electronic Voltage Regulator with a screwdriver. Bingo, charging system fixed! Those early VR's were bad news. They used to sell them at K-Mart for $4.99.
That could have been my $500 Challenger!