I had a sweet 327, forged pistons, balanced, with pro comp heads, about 9.5:1 compression, weiand 8004 intake, headers, etc. in a '65 chevy van with 3.36 gears and a th350. I wanted to get as much low end out of it as I could, so I stayed conservative on the cam. I considered the edelbrock performer grind, and the factory 300hp grind too. I finally settled on the smaller of comp xtreme 4x4 line, which was advertised to be designed to maximize low-end torque. I installed a comp xtreme 4x4 cam 12-231-2 http://www.compcams.com/Company/CC/c...x?csid=94&sb=2
Its 206/214 on a 111 LSA. .432/.453 lift. From what I understand, it has relatively aggressive ramps that effectively 'slam' the valves open and shut quickly. I think the performer and also the factory cams had fairly lazy ramps that were slow to open the valves.
Anyway, you can't see any of that for yourself, but I installed it and it worked just as advertised, helped the 327 pull down low, and really came on through the mid range too. The power band is listed as 600-4600. (I think this is probably true for a 350), but it did start pulling hard low, pretty much right off idle and exactly thats what I wanted. I had the stock convertor in that van, and the th350 was stock also, so when I had it floored, it shifted at about 4500. Since I never took the engine up even to 5000, the cam was a pretty good fit to what I was doing. I also liked how it sounded at an idle. It was not lumpy, but it rumbled strong. It was a smooth idle, but you could hear it sounded more than just a normal stock cam.
Unfortunately, the 327 came apart, sending a piston through the cylinder wall one day. It ran really well right up to the point where it didn't, lol. Anyone need 7 forged 327 .040 over pistons?
I liked the cam, so I pulled it out and swapped that same cam into a 305 HO out of a '85 monte carlo, and it did pretty good in the 305 too. Not as good as the 327, probably due to the loss of cubic inches, but it was still OK. It sure made that 305 sound good too.
I think that comp extreme 4x4 cam is a good one for small CID engines where you are trying to do what you can to get some torque out of them. I felt it was just about perfect for the 327, for what I was doing with it.
I am building up a 400 SBC for the van now, so I sold the 305 with that cam in it to a guy for his '71 truck. No need to save the cam out of it, because I'm going with a different profile on the 400 sbc.