Hello I’m new to the forum.I have 350 Chevy engine in my 80 k30 pickup I drive everyday.I put this engine in recently pulled from a wrecked suburban.so I put new hei ignition in and carb when I put it in it had an edelbrock carb but it was too small for 305 engine.I put a 650 demon carb on double pumper.it has a stumble when you go on green and it’s really been a pain in my ***.it makes huge explosions out the pipes when you let off the gas I mean not just a little pop.I use this truck hard on a daily hauling weight et.I’m going to swap out this 350 for diesel