Hi people i recently bought an r33 that's been converted from a rb20e to a series 1 rb25de (was running before) and have just redone the head and it's not starting it has power to everything even while cranking it has fuel , spark ,heaps of compression has a brand new air flow meter , igniter module , new spark plugs but cheaper ones ,coil pack seals i've tried swapping throttle position sensor , clamping the return line in case was fuel pressure but it doesn't even start with starter fluid can only get the slightest pop out of it if i disconnect the afm checked timing 3-4 times is spot on tried checking cas and get 5v on one spot but it's real touchy if turn it half a mm it will say 0.20v and it shows 3v constantly while cranking not sure if it's normal i have checked everything i can think of and i'm almost ready to call it a loss and just strip it for parts. anyone had this problem before or got any ideas ?