ariffle
Fish Shouldn't Rust
Before you do that....
Actual cam specs, timing specs(initial and total). Spray something around intake and carb base to check.for vacuum leaks.
It might need tuning. 530 ?....lift maybe not duration.
Ok, I got myself all messed up on the numbers.
If I remember correctly, the cam in the 273 is a 298 Duration and the lift is 530 ]\. I cant remember for 100% sure and I don't have the paperwork with me at the moment.
Everything has been checked, rechecked and I also had a good friend that builds engines for a living check it out while it was running and he told me the same thing. (that's a crazy sized cam for this engine and it won't last very long before it will need to be torn down and rebuilt again with the way it is now. The lowest we could get it to idle was 2000 RPM even with the timing retarded as far as it would go. We tore the front apart and set the timing 4 degrees less and did get it to idle lower, but it was thumping like a gasser and had to massage the thottle to keep it running. We also had to run racing fuel in it because the compression is at 11.5:1. we also had to put a Demon 850 carb. on it and it still acted as though we were starving it at full throttle. It's bored 40 over, heads have been totaly rebuild, has a edelbrock LD4B duel plane intake. ( the old school one that is hard to find)
Anyways I'll try to post the only video of it running that I have. The sound quality is not good, due to the cell phone camera that was used.