[cv67]

4779-7
3378
Holley 750dp

385
11:1 or so no rmore than 11.25
cam not in yet (undecided)
Old one 250/254 .670 110 may go as high as 256/260 int-268exh .650 108
230cc head 64 chamber
4.11
6 spd
26 in MT

timing 18 init/36 was where the timing was at when I pulled the motor

What jetting would you recommend to start with, was 70/80 stock.
31/35 squirter
Want to get it right this time,maybe it was too difficult between pushrod issues and vacuum leak from intake on the 350.

Thanks

 

[Dave427]

72 Primary
82 Secondary

 

[Tom Mobley]

I'd put it back to what Holley put in it new until there's some evidence that there needs to be a change.

 

[Mike]

Holley shows 4779-7 with 71/80 as OEM.

 

[cv67]

Okee dok.

Power valve??

vacuum I suspect at 1000rpm will be no less than 8 no more than 10...

Throw the 6.5 back in?

 

[onebad82z]

I'd put it back to what Holley put in it new until there's some evidence that there needs to be a change.

:thumbsup:

 

[Mike]

Yeah ,6.5 pv was OEM also.
Here's all the specs - http://holley.com/data/TechService/Technical/Carb Numerical Listing.pdf

 

[Dave427]

The reason I said 2 sizes richer primary and secondary is to keep it in a safe mode while getting your engine running.
If you feel the need to lean it out after driving it go for it.
The stock jetting is usually pretty close as mentioned, but you have a warmed over small block.
We aren't talking a Flat Top 355 10:1 with 500 lidt 240 @ 050 cam.

Dave

 

[cv67]

Gotcha Dave, put 72/82.
Had that with the last one 72 felt good and responsive. Hopefully enough for th e stroker but shouldnt be tooo lean I hope. Dont know on the secondary was having valvetrain issues but should be a start.

Thanks for the link that helps. Ill resist temptation for a 73/74 up front and see how this is. :beers: