Well about this time next year, I plan on buying a forged SB and stg 2 HP TTs...and to keep costs down i will probably leave the heads and cams alone. I plan on sending around 18PSI though the engine with 8.5-1 CR, so my question is, will the stock plastic intake handle 18PSI? I dont want to get rid of it as I have a P&Ped upper plenum. If im not misstaken 5.0 mag ran like 16PSI through a stock intake testing the plenums, also made over 600HP. Plenum added around 20HP, so mine being hand P&Pd should give even more, and I really dont want to waste it and the time. Thanks