SBC help Thanks in advance, it has some length to it but the detail is pertinent

[ccambern]

Hello, I am having grief with a little trail truck I have been building and thought I would turn here.

SETUP:
Timing set with light while distributor unplugged and carb plugged. 12 advanced

Floats set to 1/2 " to reduce fludding on trail.

Brake booster runs to back of Edelbrock carb.

Front vacuum goes to valve in valve cover.

Vacuum advance set on passenger side of front port.

Transmission on intake manifold behind carb.

I am jetted for 9000 ft of elevation and have gone trough all of the tuning process given by Edelbrock.

The motor has had the rack run on it, has 45psi oil pressure at idle and stays at 190 F idled up to warm.

Motor:
307 Ci sbc with 305 heads, cam out of a 400ci motor, performer intake manifold and carb, stock bore and compression other than heads change. HEI distributor with new MSD wires and New plugs true dual exhaust running to turbo mufflers.

PROBLEM:
The truck pulls hard when putting it into gear and idles down quite low.
when starting the truck after killing it, the idle is slow until it has been throttled once. At this timing setting the truck sounds kinda like it is under load and the idle has to be brought up.

It was set before with the timing around 22deg advance did not miss and did not act up at least tuning in the garage.

I have also tried tuning it this way and it ran better than the way I have been told to tune it. Idle set at 12 deg advanced, carb run to stronger driver side vacuum port. showing nearly 30 degrees of advanced timing at idle. BUT IT RAN BEST THIS WAY.

One last problem, the drivers side bank seems to be running a little richer fuel wise than the passenger