ptrmzr
Well-known member
Hi, I just rebuilt my 4300 (71 351 M) and I had it "flow benched" at the local carb shop. They said it all looked good, but when I re-installed it and ran it today there is a loud whistling coming from either in the carb or behind it.
I checked all the vacuum lines and snugged down the carb mounting bolts.
Any ideas?
Thanks?
I checked all the vacuum lines and snugged down the carb mounting bolts.
Any ideas?
Thanks?