I was just wondering how this combo would work out. The heads are Cast iron 76cc, 8:5:1 compression, Hydraulic flat tappet cam .383/401 112 for 1500.

My dads got this motor with a stock q-jet on an 87 Monte Carlo, and it feels alot better then my 76 thousand mile LG4.

 

I have that same engine in my 85 IROC, the heads had to go along with the cam. Compression was too low for me so I put on a set of 64cc Trickflows and put in a Summit cam kit (along with other valve train upgrades). The engine runs quite well and has gobs of power, enough to ****** the tires loose at 40 mph when floored. The cam that comes in that engine isn't really good for FI, too small LSA (only 109*)
Here is what S/D has on their site about it

Engine Name: 350 LM1
Horsepower: 249 HP @ 5,000 RPM
Torque: 304 Ft/Lbs @ 3,500 RPM
Compression Ratio: 8.50 to 1
Block: 4 – Bolt, 2 Piece Rear Seal, 4.000” Bore
Crankshaft: Cast Nodular 3.480” Stroke
Heads: Cast Iron, 76cc
Valves: 1.940” / 1.600”
Camshaft lift: 0.390” / 0.410” Hydraulic
Duration @ 0.050”: 195° / 202°
Intake: Not Included

Price: $1,279.99
Part # 10067353