I have a 350 which i rebuilt myself for the first time, HEI ignition,edelbrock 650 carb and intake. I followed everything word for word in a great engine book when putting it together. Now when I crank it, I know there is spark cuz I have open heads and it was spitting flames out(even cooler at night!). I put my timing on the balancer at 10 degrees advanced. I really dont know much about timing, so I'm pretty sure its off somewhere. What should I do? By the way, we were pouring gas in the carb and when it was cranking over, it backfired up the carb and blew it off the manifold(I didnt use long enough bolts). Any advice? Also, what is the hole in the back of the carb for??? bought it used..
thanks
jon
thanks
jon