title edited , please keep them family friendly

[ozark]

Have you checked the power valve in the holley? If it has backfired through the carb it usually blows the powervalve.

[pig rig]

well if its back fire through the carb you got a timing issue chains jumped or a flat cam

the reson I ask about getting hot is if your radiator is pluged it wont let it build power once the engine is warmed up but you answerd my other question with a yes

so can you get it up to speed if you eas in to the throttle real slow

[one low c10]

possible burnt valve?

[xconcepts]

Well I'm not sure what you mean by backfire thru the carb. I occasionally hear a pop from the exhaust, but not from the engine. The timing is good, it was checked twice and is where it suppose to be, I cant remember what that is though...35? Something like that.

I can ease up to 45 but anything after that is a no go. The coil was replace just last weekend. Really thinking its the socks...

[MikeBK]

Holly carbs should have sintered bronze filters where the fuel feeds into the bowl/bowls. It does sound like a fuel delivery problem, did you check your rubber fuel lines for colapsing from suction, also if your gas cap is not venting it can cause the same problem.