AFR Heads

273 said

SM, Edelbrocks, AFR's are not ported, ain't suppose to be on the same league there just suppose to be a step above stock, (Basically instead of running/rebuilding/modding stock heads use one of these) Even TF and CNC SM are just a slight step up from that, not meant to be low 10-8 second heads.

You would need to generally compare them to other 600+ hp heads out there.

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I took edelbrocks off my car that had been ported by a local guy, then gone over and ported more by a shop that has won enginemasters type competitions and is a well known Mopar shop. The shop that did the small block Victor heads on the 376 cube 360 that’s been posted on here numerous times.
I took them off, swapped to bloomers and new headers and picked up half a second and better than 8 mph. Same cam, convertor, carb, gears , etc, etc.