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I'm wondering if anyone has tried either of these heads on a 4.030" bore. I was thinking of getting a pair without valves and setting them up with a tad smaller than recommended valve (intake) to reduce shrouding. I'm leaning towards the W9's simply because the price is right and I know they're a very capable head that will fit on the smaller bores. The only set of MC's I've seen had been ruined by someone that thought a large rectangle big block chevy port would look good funneling down to a small block bowl area. Needless to say that while they flowed a whole 320 cfm, the velocity sucked and I couldn't find the other 30 cfm that should have been there by rights.
But I digress. What are the ins and outs of using these heads knowing that the bore is 4.030, headers are a custom deal and I'm running a 59 degree lifter angle (for now)? Rockers will be T&D unless I find some Jesel's cheaper.
Thanks for any information, I appreciate it.
Jason.

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