Wanting to put donor engine in my 59 Ranchero. Came from an 88 crown vic, EFI with 150hp....pretty lame. Would it be better to go back to carb setup with cam and roller rockers or keep EFI setup with cam and roller rockers. I would be porting/polishing heads and intake either way and upgrading the exhaust. Wanting to make around 300hp. This will be a daily driver.