Thanks Guys, I probably lost something in my translation between what was said, and what I wrote. The guy is aware that it's the differance which is important, but he wondering if was possible to check it against standard spec. I have given him the 10% differances, and mentioned the 110psi, as a guide.
He also agrees that it is more likely to be burn't than bent, but it is strange that it has bent one before and it, by chance is the same one, No 3 Exhaust. He thinks No 1 also may be suspect.
No 3 has allways seemed slightly noisy whilst I have had the car, so it is possible that it has been badly adjusted when it was fitted, and the impact of it closing hard has damaged the seat.
Next step is to get the compression test done, and strip the spare engine to check the condition of that head. It might with luck be just a case of cleaning it up and swapping them over. He says optomisticaly....
Think the bloke is OK, not an Alfa specialist, but race prepares M3 BMW's for the single make touring car racing.
should know the basics then....
