[DavidBoren]

The aggressive vvt cam from comp cams is a beast of a cam, with an advertised operating range of 2000-7100rpms.

Dur. advertised (I/E): 275/289
Dur. @ .050" (I/E): 222/236
LSA: 114
Lift w/1.7 (I/E): .566/.573
Just for fun...
Lift with slp 1.85 rockers (I/E): .611/.629

Throw 20 degrees of cam phasing on top of that and you have yourself a performer. I'm sure the Texas speed and mast vvt cams are comparable (probably better, even), but you get the point.

With comp cams ramp rates, I bet the 1.85 rockers would be a destroyer of valve springs, and .629" of exhaust valve lift probably introduces the valve to the piston, in the worst kind of way. So be careful to check for ptv clearance, and get damn good springs if you want to run 1.8 rockers.

With stock 1.7 ratio rockers, you shouldn't have any ptv clearance issues (but always check). And 1.7 rockers will play nicer with valve springs.

This is obviously the upper end of what is available for the vvt cam in the aftermarket. You can find more civilized vvt cams. Mast or Texas speed may even offer more aggressive vvt cams.

The comp cams information was readily available, and I wanted to show you what's out there.

Some custom fly cut pistons, that aggressive vvt cam, the slp 1.85 rockers, and some Pac gold valve springs would make for one angry little 327...