Hi Guys,  Also newbie to Y-blocks and just learned about setting timing to 8-10 degrees insted of stock 3 degrees,thanks ! My question is I'm running a 272 c. i. with mild cam,headers,alum.manifold (4 barrel),500 cfm carb.,MSD dist.,I bought a set of Autolite 45's, do I set gap .028 stock or change the gap (running 4-speed)? Skip