View Single Post
Old 04-02-2023, 08:00 PM   #4
Merc Cruzer
Senior Member
 
Merc Cruzer's Avatar
 
Join Date: Jul 2010
Location: Conifer, Colorado
Posts: 2,434
Default Re: 239 flathead, block the heat riser passage, or no?

I will freely admit, mine is a little slower to warm up on the cooler mornings. But once the sun gets higher, and driving at 8300 ft with the "modern" gas, it runs fine. But that is also why I made the tabs easier to remove, in the event anything changes.

This works for me, it may not work for everyone.

Last edited by Merc Cruzer; 04-02-2023 at 08:17 PM.
Merc Cruzer is offline   Reply With Quote