I need some help. My engine has a bog when you lay into it even a little I’ve been trying to systematically figure it out but I’m stumped. I’m mechanically inclined but not extremely versed in engines and definitely not with Carbs. With that being said, I’m willing to learn whatever I can.
Let me give you the particulars of my project which I purchased from a guy who was very meticulous but was also unable to solve the problem.
350 Chevy, camel hump heads, 202 valves, tunnel ram, two 390 Holley’s (4160), 400 turbo trans, 3500 stall converter, Camaro rear w/ 2.73 gears…everything is approximately 20 years old.
Starts good cold but a little harder when hot and as I said earlier it has a nasty bog regardless of speed or RPM when I open the throttle under load. I’ve verified constant fuel pressure throughout various speeds and RPM. The timing was set very far advanced and when I corrected it the bog got worse.
Verified vacuum advance is working (at least some anyway). I have read many of the threads on this site that pertain to my problem.
Where should I start to figure out the root cause of the bog and how do I remedy it?
If you’re going to tell me to loose the tunnel ram, please refrain from comment. That would be after I have exhausted all other avenues.
Thanks in advance for you help,
Mike
Let me give you the particulars of my project which I purchased from a guy who was very meticulous but was also unable to solve the problem.
350 Chevy, camel hump heads, 202 valves, tunnel ram, two 390 Holley’s (4160), 400 turbo trans, 3500 stall converter, Camaro rear w/ 2.73 gears…everything is approximately 20 years old.
Starts good cold but a little harder when hot and as I said earlier it has a nasty bog regardless of speed or RPM when I open the throttle under load. I’ve verified constant fuel pressure throughout various speeds and RPM. The timing was set very far advanced and when I corrected it the bog got worse.
Verified vacuum advance is working (at least some anyway). I have read many of the threads on this site that pertain to my problem.
Where should I start to figure out the root cause of the bog and how do I remedy it?
If you’re going to tell me to loose the tunnel ram, please refrain from comment. That would be after I have exhausted all other avenues.
Thanks in advance for you help,
Mike