Just to be sure I don't screw more stuff up, what is the firing order on a 68 Skylark 350? I changed intake manifolds and now I'm not even sure where plug number 1 is anymore.ou: Thanks, MARK
Mark: Plug #1 is the first plug on the driver side of the engine when looking at the engine from the front. All Odd cyl. are on the driver side and all evan cyl. are on the passanger side. So 1,3,5,7 are on the drivers side in that order from the front of the engine, and 2,4,6,8 are on the passanger side in that order from the front. The firing order is 1,8,4,3,6,5,7,2 going clock wise on the dis. Hope this helps.
One more thing... I replaced the points distributor with an HEI. I thought it would be numbered but it's not. Where is #1 on the distributor? Thanks again, MARK
You will have to pull your #1 plug and make sure that the piston is at top on the compression stroke (both valves closed), then drop the Dist in. and where ever the rotor is pointing will be #1. I try to get it so #1 is above the Vac. advance, but I think it can be anywhere you want it.
There is no real #1 on the distributor, you can pick any of the eight contacts. Handy when you don't have enough space to turn the distributor (to set the timing) because of the interference between vacuum advance unit and the firewall or other objects (depends on small or big block position of distributor) Put #1 cylinder in TDC, mark on balancer at 0 degrees, both valves closed (otherwise turn crank 360 degrees) Then look where the rotor is pointing at, that should be your # 1 lead I always use a cork, placed in the hole for the #1 sparkplug, turn crank by hand, when compression is building up, the cork will fly out of the hole. That way you know the piston is at TDC with valves closed
