Boss manifold is highly overrated. My car made 435/420 with the stock manifold, long tubes, JLT CAI and custom tune from GH, while it was still n/a. I shifted that combo at 7250 with a 7400 soft rev limit and ran 11.50's. Unless that intake is near free, I'd pass.
Curious as to whether the power was still building up there downtime?
Threaded Mode