IMO
a lumpy idle is not an issue.
Rather; the "pumpgas compression 360",is a problem.
The lumpy cam usually points to a late-closing intakes, and a generous amount of overlap.
When coupled with the right cylinder pressure this can be a dynomite combo.
But when coupled with a ,what used to be called "pump gas friendly, compression ratio of 9.0 Scr or say even 9.5, it's a disaster off the line, requiring a higher stall, and un-street-friendly gears, just to get moving. Most times the combo doesn't wake up until well after 3000rpm.
So no, that won't work with 3.23s because 3000 is ~29mph; and who wants to wait that long! Even with 3.91s yur still waiting to ~24mph.
So if it don't spin, it's a total disappointment.
The only choice at that point is a higher stall, to get past that soft zone. And by this time there is no hope of comfortable hi-way cruising, and forget about fuel economy. So what you are left with is a Saturday-Night Cruise-in-and-park combo,with a race car personality.
The partial cure for this is more cylinder pressure, which usually involves more stroke, or more Scr, or really; just an earlier Ica.
Would I run that cam?
Well,
I ran the next bigger 292/292/108DC cam, with a clutch. That combo did not like 3.55s which is what I wanted to run. That cam was out and sold before the first winter. and
I currently run the next smaller Hughes cam, a 230/237/110 hydrocam. For me it is bordeline too big, and I have combo'ed it with 180 psi, a 4.10 equivalent starter gear, and an overdrive.It's a great combo, and has been in my car since summer of 2005.
The problem is the early exhaust opening. It gets terrible fuel economy, and blasts thru a tank of gas in a heartbeat. Even on the hiway in steady-state at 65=2240 and with over 50* of timing.( she likes more). A good portion of the expanding gas energy, goes straight out the exhaust.
Now; above is with a 230/237/110 cam@180psi, in a 367, with a clutch and 3.55s.
Imagine it with a 237/242/108 with 130psi cylinder pressure, an automatic, a 3000 stall and 3.91s, still with a 3.58 stroke. In at 104, the Ica is 66*(same as mine) and the exhaust opens at 104(advertized) same as mine. My overlap is 61*/60 effective. The 237 cam has 70*/64 effective. What this 237cam offers is about a 300 rpm higher power peak, so yeah more absolute power, but the rest is about same as mine. It's gonna need pressure, and it's gonna burn a lotta lotta gas.
