Interesting project. I've been pondering something similar; thinking about using a split air box, vis a vis the Coyote's "Y" approach and straightening the runners; reducing that (90ยบ) bend into the IH. (I believe it was Grahm (?) that said they were able to increase the 90 LT5 output to something well north of 430 chp by straightening out those runners some, IIRC. But, anyway, let's face it: GM isn't going to be coming up with anything for the LT5s. It's up to us ZR-1 loyalists to do it. And, so learning from what others are doing with the DOHC motors is a good place to take notes, I recon!
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