Hello, I am new to this forum. I own a 1971 Jaguar XKE V12 that has developed an odd problem. It won't start or restart without a shot of starting fluid. I have replaced the battery and I use 90 octane gas (the highest I can find in Amarillo Texas). Once I get it started it runs fine. Do any of you have any suggestions as to what the proble could be/possible solutions? Thanks.