ok,the first question : I have a 91 crx si,it has a mini me swap in it (d15b7 block,d16z6 head)....now i used to have a p28,a conversion harness,and a del sol distributor..but the shop who did the swap,couldnt get the p28(it was an automatic,they didnt know how to re pin it) to work...so they gave me a pr3 (obd 0 b16 ecu) to run vtec..wired up vtec...and the car runs fine...but the only problem is...my vtec engages at 3,000 rpm,and my car stops making power at about 6,000 rpm...making it very hard for me to win any kind of race...so now i ask..is there any way i can run my stock pm6 ecu..and run a vtec controller or SOMETHING so i can change the vtec crossover to 4500 (which is stock for z6 vtec)...or 5000 rpm,so i can make more power throughout my gears???or do i have to get another,ecu,conversion harness..and do it over this time,with a manual ecu???? Second question : I just bought another crx (91 hf) for 1500$ that has a LS(b18a1) motor,crane cams,crane dizzy,and cam gears...and currently,its running off the stock integra ls ecu....what i want to ask is,what would happen if i hooked up the pr3 to that car,would the fuel and air tables be more aggressive,and would my powerband be a little bit earlier or later...or would it throw the whole air,fuel,and gear tables completely off,and mess up my acceleration,and speed??? if i can use the pm6,and run a vtec controller..i will put the pr3 on the ls crx...and everything will work out...but if not,then what do i need to do?? Thanks.