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Let's not let drive-ability get in the way of a decent sounding lumpy cam idle!!
Side note, I don't want to fuck with my tune but my tuner set my warm idle at over 1,000 rpm which gets fucking annoying given the amount of time I spend idling in traffic in central London. It also tears through fuel in town.
I'd rather have to use throttle on cold start than have to put up with a fucking high idle all the time.
NurseHolliday
BRM
I have a pair of bigger su and a weber (for the racer), but peter said that we are talking another 5/6bhp right at the top of the rev range, but a big loss of low down driveability. given the lumpy cam, it isn't worth it.
fwiw - I would use then next size down in cam if I was building the engine again. the expensive of the rebuild meant I didn't suggest it this time.