Help me please tryin to beef up 318

what gears should I get? or what would you recommend

This is my recommendation, from what you have now is a stock 2bbl 318, with a 4-speed and 8.75 gear, correct?
What gears are in the car now?
Low budget.
Put the intake and carb you have on now, it will work.
Duel exhaust.

Gears, depend on do you drive back road 2-lanes, or interstate?
2-lanes I like 4.30 quick and zappy throttle response.
Interstate 3.23, keeps the revs down and gives somewhat decent gas mileage.