Hey all! I have a SBC 350 with vortec heads,Edelbrock idle - 5500RPM intake Edelbrock TES headers (that have been cut on to allow for a 2.5" true dual exhaust - X pipe - ultra flos). I think that my cam is the problem. 9.4;1 compression ratio. I had the car dynoed before and after the exhaust, and the results were identical (235hp/275 torque) - so that leads me to believe I have a cam problem? The cam in the car currently is an edelbrock and I don't remember the specs - but something like .442/.442 intake/exhaust after 1.5 lifters

It seems like I remember there was a lunati cam kit that was supposed to be a good upgrade for this type of setup, that also came with valve springs that fit the vortec seats. I think my heads are prepped for this already basically, as I put in guides/screw in studs.

Any suggestions would be great!

im lovin my comp extreme 262* 4x4 cam im my 406cu in with about 5500-6000 lbs 1 ton gmc moves lots better than the stock 454 that was in there.for the last ten years most motor builds in magaziines incorporated comp cams camshafts in the builds especially popular is the extreme line!

im lovin my comp extreme 262* 4x4 cam im my 406cu in with about 5500-6000 lbs 1 ton gmc moves lots better than the stock 454 that was in there.for the last ten years most motor builds in magaziines incorporated comp cams camshafts in the builds especially popular is the extreme line!

GM Performance parts offers several cams that will work well depending on your desired power level. I have the HOT cam kit which uses 1.6 roller rockers and a bigger cam to get just over 400hp.