In engines with a low vacuum signal (big cam) the metering rods get confused at idle because the vacuum signal goes away. So, they tend to bounce at idle and they do not idle very crisp.....but they still work fine everywhere else.
I've been running a large overlap/duration cam with fairly high comp. pistons (11.5:1) and a Torker with a 650 DP. It runs very strong. This current build will likely use a similar cam and same pistons (maybe a bit less compression). The Torker/Holley combo provided a fairly low vacuum signal (if memory serves, around 10-12" at idle) I'm guessing I should try to pair the TQ with a good dual plane if I use it to boost the signal?
