I have a 5" Autometer tach so I'm pretty sure about the RPMs.
![292 comp cam 350 292 comp cam 350](http://www.2040-parts.com/_content/items/images/66/101866/001.jpg)
However, my best et's were made with 6500 shift points even though I would swear the engine was still pulling very hard past 6500. Anyways, the 292H would float the valves at 7200 rpms and pull hard to 7000. I believe Dart heads came with springs for a roller cam. The springs were a little stronger than the springs recommended by Compcam for the 292H. I brought the Dart 200cc iron eagle heads and used the springs that came with the heads. Equipped with the mildy ported heads, COMP cam and Weiand intake. I also seen some early 70's corvette headers that fit pretty close, but still require mods. Cylinder Head, Performer RPM, Aluminum, Assembled, 95cc Chamber, 292cc Intake Runner.
292 COMP CAM 350 PLUS
The headers required a little modification to get into the car because the headers were not designed for the setback position (JTR position), plus the scatter shield for the clutch was in the way, and I also converted to 2-1/2" collector flangers for more ground clearance. I bought them 10 tens ago so not sure if you can still get them. I used the Hooker Super Comps for sbc conversion for a z. Last thing, a bigger cam will need 20 to 25 degree of ignition timing at idle and use zddp oil additive to keep the cam lobes happy. Also get a holley 3310, 750 vacuum secondary. I would stay with the rpm intake no matter what cam you use. The performer intake and 5500 rev limiter is not good for the bigger cams. And the hp will be choked off even more with the bigger cam. 12.3 with better exhaust then 11.7 with better heads, installed in that order.Īfter your head swap, I think the block huggers and 600 cfm carb are your biggest hp killers.
292 COMP CAM 350 FULL
So, it drop a full second in the 1/4 mile with better exhaust and heads. 518' /.518' Duration: 292/292 RPM Range: 2500-6500 339.99 Estimated to ship direct from manufacturer on 11/30/21, pending manufacturer availability.
![292 comp cam 350 292 comp cam 350](https://i.ebayimg.com/images/g/HCEAAOSwDv5gjVUM/s-l225.jpg)
With block huggers, single 2.5" exhaust, old fuelie double hump heads, 292h cam, rpm intake, and 750, it ran 12.7 at 110 mph. COMP Cams Magnum 292H Hydraulic Flat Tappet Camshaft Small Kit Lift. Did a best of 10.7 at 135 with a 175hp shot n02. Ran a between 117 to 120mph in the 1/4 mile around 11.7 et. got a, new to me ,1966 chevy c-10 step side and it appears to have a 292 oil pan.
![292 comp cam 350 292 comp cam 350](https://c8.alamy.com/comp/P520C5/mexico-city-mexico-september-01-2017-autodromo-hermanos-rodriguez-fia-world-endurance-championship-wec-fortec-motorsports-driver-diego-menchaca-no-8-running-at-the-collective-test-i-for-the-world-series-formula-v8-35-P520C5.jpg)
I ran the 292H with my 350 powered z (t5, 3.90 gear, 200cc dart iron eagle, long tube headers, rpm intake, 750 carb). chevy 250 inline 6 oil pan Canadian Custom Chrome cam.