I have a 90 4dr jdm obd1 H22a 5sp with 50,000mi. Ive had this swap for 2+yrs now. the only thing i have had to replace is the distributer. When i first did this swap i used everything that had to do with the vacuum system from the usdm obd1 H22a1motor minus whats in the black box which houses MAP sensor, EGR control solenoid, purge cut-off solenoid valve, and the constant vacuum control valve. I also used f22a1 fuel rail because fuel inlet is on other side on jdm fuel rail. Is there a difference between those parts and the usdm prelude vtec parts. has any one done their swap this way. Pro's vs Con's
thx kev420
thx kev420