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Just add a point of reference to this discussion. My 360 is 30 over with zero decked KB107 pistons. I have stock magnum heads and run a Comp XE268H cam (224/230 @ 50, .509/.512 lift with the magnum 1.6 rockers). I have a high rise dual plane intake, 600 CFM vac secondary holley, 1 5/8 headers, A833OD and 3.55 gears.

This combo is making approximatley 370 HP based on 102 mph trap speed.

This is encouraging for me and my future 360 build. This project of mine is at least 3 years away yet and I really hope to be able to buy the EQ Magnum type heads or the Hughes Magnum type heads. Under my bed I have new KB107s, an Engle cam 230 dur 510 lift and a new Offenhauser 2 x 4 underhood dual 4bbl intake.

Keep old mopars alive.