Yo wat up hope anyone can help .....ok 90 ef Si ,DOHC ZC.......engine rebuild swap is ok i looked at everything done to do the swap i didnt do it personally but ive had alot of people check it out usually honda experts....The problem......(I had a low temp Thermosat and the car would run fine...but i decided to go stock thermosat...i went with a failsafe and checked before i installed it.. it comes to temp im driving normal 1st 3,200rpm shift up drops to around 2,400 rpm for 2nd and it feels like it chokes like a weight is holding me back....or maybe no fuel?? to much air??? its all stock.. Timing is on dead center marks line up all ok....all the sensors are fine i hope dont know how to check...the only thing wrong that i have with it right now is the VSS cable that goes to cluster to the tranny is bad....if anyone can help please give me advice or questions i really want to get all the power i can from this engine until it dies!!!! pg7 ecu