: heat riser valve



dill
06-18-06, 10:31 PM
I had my heat riser valve replaced on my 1987 Brougham 307 yesterday, and for some reason not thinking I put regular gas in it. To my surprise there is very little or no pinging in my engin now. Great news with the price of gas:thumbsup:

dill
06-29-06, 09:11 PM
Pinging is back ,back to high test gas:rant2: .

N0DIH
06-29-06, 11:40 PM
307's are notorious for clogging the EGR stack tubes under the carb. Remove and clean and go back to enjoying 87 octane again.

caddydream
06-29-06, 11:55 PM
I agree.

N0DIH
06-30-06, 12:56 AM
I did my 307 years ago and I could not believe how much better it ran. It was a definate hp and driveability improvement, as well as being able to run 87 octane again...

dill
06-30-06, 11:49 PM
Thanks ,I must give that a try:thumbsup: