Fraught with peril, indeed. This is an attempt at building in some EGR so no guarantees, and any input welcome. I’m thinking of a custom duplication of the 360 single pattern cam but grind in .430-.440 lift intake and .410-.420 exhaust. Have as much duration as is practical ground in under the curve to maximize torque without any valve train noise.
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It’s probably going to need somewhere in the 114-116 LSA and work the exhaust port flow within 75-80% of intake flow. Although it’s probably not an option, I’m thinking the best (easiest to tune in lean) intake here is an EGR equipped Edelbrock StreetMaster. The factory single plane’67-72 two barrel iron single plane fitted with a plate EGR system might work even better.
