Pros or cons?

I saw a cast Rev hard on ebay for $209. Don't know if its a true rev hard manifold. Being that I have an H22 I don't have as many options as b engine owners. I Could buy a custom one for $350 but don't know if that would benefit me as I plan on only 300-350 whp.

 

If your comparing cast to equal length/tubular then there are definitely pros and cons. Cast usually result in quick spool but if wastegate placement isnt located near the center of the runners then you may deal with boost creep. Tubular manis have better flow and usually better top end power. I would recommend a quick 4 tubular manifold for your H22 unless you are on a budget.