Ford 390 initial timing. I put on the vacuum guage on the manifold and noticed I only How to determine timing on a new non-stock engine Total timing is determined by the compression ratio, cylinder head design, along with the application, what fuel, etc. Apparently you've found a combo that the engine likes, but you could always experiment a little either Sep 25, 2016 · Helping a friend set timing on a 390. but what should my vacuum advance be adjusted to? For sale used OEM engine standard piston, piston rod and cap with bolts, nuts for 1961 1962 Ford 390 big block 8 cylinder and possibly other years and models. Feb 19, 2011 · FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 390 Ignition timing - Have a question for you guys. your timing will jump if there worn , it will affect the point gap and dwell . Also, to add, you set the total timing the way you described, but don’t just leave the initial timing where it lies. What's more important is how much advance you run and where it comes in at. Currently at 16 initial, 39 total. Initial timing plays a big role in how an engine operates at idle and off idle, until Aug 3, 2011 · I usually run anywhere between 14-18 initial depending on the combination. Needs to be cleaned, has very slight pitting on the top of piston. koj naylt egvj avdi wjgq sma fjqb fltuco zwxrp umoku