For the price of the Power heads you could find a set of Cast Iron Gt-40's (stock styleheaders will work) or get a set of GT40P's (need special headers) that will give you more room to grow in the future. I have seen sets of Cast Iron GT40's for $600 in the past, look around.
Just my $.02
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[b]12.16 @ 113.5, 1.78 60ft..no traction in the 90 degree