Hey John,
Thanks for the offer.
I just picked up the 292 last weekend and don't have an NV4500 yet. I'm thinking it's the best bet behind the 292. I put a T5 behind a 235 in my 46 but I think a T5 would be too light behind the 292. I plan on hoping the 292 up a bit which should put out around 275-300hp.