Thinking about this Howard’s cam

B3422w5 said

Wow. Interesting. Never heard of that big of a split before.
I am a big believer in a narrower LSA for a heavy car( mine is 3330 with me)
That cam seems “ big” to me lol

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It is pretty close on the intake duration but the extra 12 on the exhaust doesn’t surprise me any more. Especially with geometry like your engine has.

I ran some rough numbers for the 385 inch deal I’ll eventually build and it called out a 16 degree split.

My WAG is the extra exhaust duration is to open the exhaust sooner to help with pumping losses.

I need to compare the cam you’re looking at and my numbers a bit closer.