Yur best bang for money spent is to increase the stall; and
second best is to increase the torque-multiplication of the rear gears.
then the 4bbl
then dual exhaust
then the cam
or
just install the 360.
Be interesting if someone did a drag and or 0-60 mph comparison.
Of a stock 2bbl 318 with a good tune with optimal performance stall and gears vs stock stall and gears and basic bolt ons 4bbl cam and headers on a low cr 318 vs a stock 2bbl 360 and stock stall and gears.