I figure this is simple, but there is a lot going on right now, so I thought I'd ask "the Brain Trust". I have a fresh rebuilt SBC with TH350, Rochester 4V carb, HEI Ignition. Idles fine and runs up nice, but when I put it in gear, it wants to stall out. If I give it gas while holding the brake it will let me go, but to hold full brake at idle in gear is not happening. With the Alan Grove brakets, I'm not able to see my timing marks, so I'm going by ear. Not how I would prefer it. Any suggestions. I've uped the idle, but something else is needed.