This is what I run now.357ci SB
14x4 K&N filter
MSD cap and rotor
stock coil, recurve kit installed.
10* advance at idle. That I know of.
MSD 8mm wires
600cfm eddy carb
wieand 8004 intake
(spread bore intake, still needs proper spacer or different intake)
882 heads
blueracer 270H cam
8.16:1SCR/6.69:1DCR-9.03:1SCR/7.39:1DCR worst case to best case. I don't know enough specs.
4 valve relief flat tops
stock pullies
and a solid steel fan (must be costing upwards of 20hp/15lbft)

TH350 tranny
stock stall
3.73:1 gears with an eaton limited slip

235/75x15 snow tires (295/50x15's come spring, I hope)

1986 GMC 1/2 ton 2wd long box std. cab

200 pound driver

Is it a good combo?
I see pics of lots of stock 350 powered trucks smokeing the tires. I have tried, but on dry pavement my truck will not spin when trying to hold it still with the brake. If floored from a stop. Maybe 10 foot black marks.