What intake?

[Gpuller]

I run the old .484 cam in my lower comp 440. At first it was installed straight up and it was a dog. I degreed the cam in an it needed 4 deg advance to be installed correctly. After that it was a whole new animal. It needs lots of initial timing too.
Someday I'd like to swap in a newer cam and see what happens.

 

[Cranky]

I run the old .484 cam in my lower comp 440. At first it was installed straight up and it was a dog. I degreed the cam in an it needed 4 deg advance to be installed correctly. After that it was a whole new animal. It needs lots of initial timing too.
Someday I'd like to swap in a newer cam and see what happens.

Stuck one in a buddies car which had the L2266 (iirc) pistons. The cam went in at 5 advanced. The engine liked 50 degrees total! Similar thing with a 318 that got a .480 lift cam. We never got a good ET with the big block car because of traction issues but ran some low mid 12's with it. The teen ran 13.50 and was pulling 2.2 60' with 102 mph using a bone stock converter! With a better mix of parts, low 13's? It too liked 50 total. When we did the teen, I triple checked my timing light. Someone else stuck the cam in that one and I never did check to see where it was. The car has been sitting but it's still together so maybe some day I can do that and see exactly where it's at.

 

[Gpuller]

Mine is set at 25deg initial and 36deg total, seems to run nice there. Just this summer finally got a distributor that I could adjust the mechanical advance. Should have done that years ago, car is completely different to drive now.

 

[Cranky]

Mine is set at 25deg initial and 36deg total, seems to run nice there. Just this summer finally got a distributor that I could adjust the mechanical advance. Should have done that years ago, car is completely different to drive now.

What's the compression on your engine and the cranking PSI? The initial seems kinda high for an engine that likes 36 total. Have you tried more total? The way we found that the two engines I mentioned liked so much total was by the ET they ran. Of course, the one with no traction only got worse with more timing lol. We also kept a close watch on the plugs looking for detonation....

 

[Gpuller]

Not sure of the compression. It just has some cast replacement pistons in it, built long ago. Did a cranking compression test on it long ago too, as I remember it was around 170?
Been running an old Mopar Performance dist until I put in a new Firecore this summer.
Had only been running 15deg of initial timing so it wouldn't rattle and detonate because couldn't limit the mechanical advance in the old dist without a bunch of B.S. With the old dist it had way too much total. I'm sure it could use a little more total but it starts, doesn't death rattle and runs like a completely different car. So I let good enough alone.