Help on 408 build

PRH said

Imo, if the current plan ends up at something like 11.4:1cr, for a 99% street car to be driven on a diet of pump gas(where making the most power possible is not the primary objective)....... it’s not a very good plan.

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IMHO.... it all depends on what he does with the cam and what he can accept in terms of operation, and how well he maintains tuning after build. DCR in the low 8's with AL heads, zero deck, and closed chambers would be OK in my book on 93 pump premium. Long duration, and older style slow ramps would be where I'd head if I chose to work with this SCR on pump premium.

Behavior I would expect with a cam that reduces SCR to DCR by 3 whole points with long duration:

• I'd expect it have good low RPM torque at that DCR and displacement.
• But I would expect the torque band to be somewhat 'peaky' up in the mid-range when a bigger cam is being used to reduce dynamic compression so much... i.e., not a very smooth torque curve for cruising.
• Economy is going to be pretty poor