Rpm vacuum drop into gear

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A

ap6street

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Location
australia
Does anyone have a similar setup that can tell me if the drop seems standard.
Neutral- 1500 11" vacuum
Gear- 1050 5" vacuum

410
Locked timing 28
266/272 110 cam
904tf 5200 8"converter
 
It made best hp on engine dyno with 28.
I will have it on a chassis dyno soon.

I could try it at idle and see what it does to the drop though
 
ap6street said:
It made best hp on engine dyno with 28.
I will have it on a chassis dyno soon.

I could try it at idle and see what it does to the drop though
Click to expand...
Timing ,is needed to start... to say the least... What's the entire combination?
It's a,big cam ,I have tuned bigger cams ,to be driveable.
 
410
Indy 360-1 ported
12comp
950 holley
quench 039
600hp 545ftlbs 6700/5100
28locked timing
Drivebility is great just low vacuum at idle which is making it hard to tune coming off idle.
 
ap6street said:
410
Indy 360-1 ported
12comp
950 holley
quench 039
600hp 545ftlbs 6700/5100
28locked timing
Drivebility is great just low vacuum at idle which is making it hard to tune coming off idle.
Click to expand...
What distributor/ ignition system / charging system s ,are you running?
Sounds ,like a damn nice combination.
 
Pull the plugs ,after every pass.. Look for aluminum specks ..,on the spark plug metal shell,and the electrode....
What fuel ,are you running ?
 
ap6street said:
410
Indy 360-1 ported
12comp
950 holley
quench 039
600hp 545ftlbs 6700/5100
28locked timing
Drivebility is great just low vacuum at idle which is making it hard to tune coming off idle.
Click to expand...
That's strong.....
 
Abodybomber said:
That's strong.....
Click to expand...
How well is the converter doing ,with that combination?
What,does,Australia. ...have for,fuel....
A member here named,Bakerlite ....might be your best bet...A,damn,good car guy.
 
Last edited:
Not sure on the converter. I have had no time to test the car just been taking it out on the street. U think too much ?

98 octane everywhere here which is equal to ur 93
 
ap6street said:
Not sure on the converter. I have had no time to test the car just been taking it out on the street. U think too much ?

98 octane everywhere here which is equal to ur 93
Click to expand...
No ,you don't think enough ... That's why your asking questions, isn't it ?
Take a deep breath, and I know what I would do ....
It's not my car , let's some people chime in...
I know what I would do
Have a nice day ,sir ...jus' tryin ' to help...
 
ap6street said:
It made best hp on engine dyno with 28.
I will have it on a chassis dyno soon.

I could try it at idle and see what it does to the drop though
Click to expand...

Then by all means, leave it there. We wouldn't want any dynos to outrun you.
 
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