I'm finally getting my 427 in my 59 to run pretty decent, but I am worried about the initial timing requirement. I have it running at 21 degrees initial, (with vacuum advance on manifold source)but it wants more. I can tailor the distributor where I need it, but am worried about detonation if I go more. The engine is a .030 over 427 Chevy, with 11.2; measured static compression, and this cam http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=4&sb=2 the factory LS6 454 cam. If I advance or retard the cam, will this help so I can run less initial timing. I am currently running an HE!, but have a Mallory dual point(no vacuum advance) also. Setting mechanical advance , and total for either won't be a problem for either. Just looking for some advice, until I can save enough money to replace the pistons. Total power not an issue later. Just want to drive it. Any advice will be welcome.