bit of a tricky one here, I just put a 343 AMC v8 into my Javelin and it';s got a wee annoying low speed miss, it's fine at high revs and under load, ie it revs out fine in 1st and second, does a skid with out a problembut at idle it hunts aroundand quite annoying, have changed plugs,carb and dizzy even , ideas!leads !, the donk /I took out was a 390 and am using the same dizzy and leads ,coil etc, I must admit with a wee run it was better ( it has sat for a year or so) , just annoying
rob_man,
Feb 5, 7:53am
Vacuum leak! butterfly shafts worn! carb gaskets dried out while sitting! A bit messy but squirt oil around the key points on the carb with an oilcan and see if it changes anything.
petermcg,
Feb 5, 8:16am
Yeah I would say have a good look at the carb and vacuum pipes, and make sure your timing is OK. It sounds like the Idle mixture adjustment but that sounds to easy.
rob_man,
Mar 14, 7:56am
I'm picking the idle mixture is wrong because of a vacuum leak.
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