As The Title Says Firm.. Firm I Have A B16 Head From A 2000 Si It Got 2000 Miles Since Its Bin Freshly Machined It Got Dual Valve Springs N Adjustable Cam Gears Including Injectors Distributor Vtec Selanoid Ready To Drop It On A Block N Run If Intrested Call 863-808-8549 Or 863-808-6922 Ask For Kenny Or Dread Boy