Timing my 350

[Lippyp]

She's idling much better now with the vac advance swapped onto ported vacuum. However, under load theres an occasional big miss followed by a massive backfire through the exhaust (man that can be loud!), it seems to do it occasionally through both exhausts (duals with no crossover pipe) so I'm beginning to suspect either plugs, cap or wires so I think its time they all got replaced, the rotor is new as the Pertronix kit comes with a new one but the rest are a good few years old and have been sat on the engine not being used. . I'm pretty sure the wires are on in the right order but I'll double check tomorrow after I've changed a front hub on my blazer. I'd forgotten just how much of a challenge getting an engine tuned up right can be as its years since I did one thanks to a succession of modern engines (you know the ones where you open the hood, try and work out where the plugs are and quietly shut it and drive to the garage)