Hi guys put a new Edelbrock 1403 on my 272 Y-Block today, had the stock 2 barrel on it, man does it run better, the only major non bolt on problem, was the 312 4 barrel manifold, the seconderies are bigger then the ports on the manifold so we just took a die grinder and ground them out worked great, runs very smooth, love the electric choke, Oh yeah had to modify the throttle linkage. for the price I am Happy.
Edelbrock is advertising on TV for rebates if you've recently bought one of theri carbs.
You might want to check it out.
BuBBa
THANKS BUBBA, I WILL CHECK IT OUT.