[T77911S]

those pressures look good. my brother has the fuel gauge now. i need to get it and check my bleed down pressure and i will check the time to heat up.

if you have the 033 or 045 WUR, remove the vacuum line and plug it and start it cold and see how it does. when i got my car i was not sure if the vacuum line was connected to the correct port on the TB. if it is not it will cause a hesitation and popping when cold.

i bought my car from my brother, when he bought it, it would not rev past about 2500. he got it running better so it would rev to amost 4000 before it would ping but you could not floor it. we thought it was a fuel delivery problem, either fuel dist or fuel pump. i bought the car and playing with timing i got it to rev to 4500. thats when i started thinking someone set the cam timing wrong. sure enough, it was 15 degrees advanced. anyway, in all this troubleshooting i learned how important the vacuum ( and the TTV) are to the WUR and its effects if it is not right.
my cold pressure is .8 bar, then 15 seconds later it jumps to 1.8 bar then it continues up to 3.7 bar. i have NO popping or backfiring with it like this.
i hate to see you overlook this and cause work for yourself.