Holley tuning help please

[krowbar]

krowbar, are you still running 60 total timing?

Yes

 

[krowbar]

Tigged and ground down. We'll see how they work.

 

[cdr]

if you dont get your ign timing correct you will destroy the engine. 60 deg ,,,,,don't do it !!!!!!!!!!!!!

 

[Bad Sport]

I am in need of a tuning guide or web link for Holley Double Pump tuning. I need to understand the circuits a little better to diagnose my problems.

http://www.amazon.com/Holly-Carburetor-Handbook-4150-Hp473/dp/0895860473

krowbar, are you still running 60 total timing?

Yes

Waaayyyy too much timing. Remember, timing first, then carb tuning.

If you are doing both you're chasing your tail.

- - - Updated - - -

every .015" reduction in the slot length reduces mech advance 1 distributor degree (2 crank degrees).

Dimensions for Mopar distributor slots, in DISTRIBUTOR degrees

Modifying advance slots
degrees / slot size
6.............. .340
7............... .355
8............... .375
9............... .390
10.............. .405
11.5 .......... .420
12.............. .435
13.............. .445
14.............. .460
15.............. .475
16.............. .490
17.............. .505
18.............. .520