MopaR&D
Nerd Member
Lucky that you are higher up also.
Yeah that helps but a bigger cam would easily make up for it, or running premium instead
Lucky that you are higher up also.
I sure am confused on what to do now
That's what most around here are good about doing.
Luckily your here to save the day !
And luckily you're here to be a total smartass and contribute absolutely zero. Really, how was that helpful? That's all I'm trying to do is be helpful. Not trying to save anything. Maybe after this, I'll just save me a place on the couch and screw this place. Butthole.
It was no less helpful then your remark were you pretty much said no one on the site knows what they are talking about but you.
People need to start thinking about Dynamic compression--Static is only a small part of the equation. J.Rob
I like to stop at about 8.4 dynamic for pump gas, but thats just me and not the end all
People need to start thinking about Dynamic compression--Static is only a small part of the equation. J.Rob
As Jack said I too am running 10.58:1 with zero decked KB107's in a 360 with magnum heads and an XE268H cam. The cranking pressure in my engine is 195 to 205 psi. I have almost 50k miles on the engine running 89 octane with no issues. I have tried 87 but high loads at low rpm do cause some detonation so I stick to 89.
The efficient port and chamber design of the magnum heads do not require as much timing. I have found I get the best performance with 33 degrees of total timing. The XE268H cam likes a lot of initial timing and I am running 17. I have springs in the distributor that have the timing all in at 1500 rpm.
I also run vacuum advance and have it adjusted to add 17 degrees at 14" Hg which happens at cruise in the 40 mph range.
All in all I think my 360 is dialed in pretty well for a street car, I get 16.5-18 mpg around town and 21-22 mpg at 70 mph on the hiway. I have an A833OD with 3.55 gears in a 68 Barracuda.
:happy1:
Pretty much