How do you like the trickflow street I just ordered it and i am anxiousley awaiting for it to get here I was going to get the gt40 "they" say it is not the highest recomended for a mild " stock+" engine and that the cobra manifold I could not get because they did not Make them anymore they are being remanufactured to be more competitive with more recent manifold's. gt40 and cobra manifold's are a old design, do you not agree? So you see where my delima is Im going with the TrickFlow because I know 3 people dynoed from Cobra Ported manifold's to TrickFow {street} and have range on stock 15-34Hp more , to modified 27-44 Hp more, so for the money and the results , I am just sticking with stock heads and cam untill I pend 6,500 on paint job, {car is completly stripped } anyway's Do you think it is worth it to get the TF manifold kit or do you know of a better manifold for in the 4-$600.00 range for mild stock block and head's