budget drag strip car build Q's

Yes we can throw all kinds of money at our cars to go fast. .......but

I want to build a low budget drag strip car.

What I have so far:

71 Duster roller
8 3/4 rear
home built frame connector
relocated springs into rear frame
340 short block, zero deck cast pistons, steel crank
stock J heads, 2.02
edelbrock 1407 (750) CARB
stock rockers and 273 adj rockers
edelbrock 2176 intake (orig. perfomer) dual plane

Recommendation needed:

cam choice?
spool or not to spool?
rear gear choice?
have 904, converter stall choice?