First of all, thanks to everyone for your interesting and useful suggestions and questions. I always learn more here than I ever could teach.
I mentioned above that I have an 1850c Holley which is in the 4160 family. It is mounted on a Performer dual plane intake. Other engine specs are: recent rebuild, .60 over, original power pack heads, .218/.218 flat tappet hydraulic cam.
I posted a while back about having backfiring issues through the intake and narrowed that down to an overly rich condition which might have started due to too high fuel pressure.
Then life got busy and I had to take a break on the engine problems. With spring coming soon to the mountains, I’m giving my attention back to the truck. I promise to let y’all know how things turn out with a list of what I’ve done in what order and hopefully the happy ending.
Larry
Last edited by LAJones48; 03/06/2025 2:09 PM. Reason: Clarity
