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350 holley on 2.6 astron

Posted: Sun Apr 12, 2009 9:54 am
by 2.6_sigma_skidder
hi guys has anyone put a 350 holley on a 2.6 astron if so what jets did u run . im about to do this after easter so well keep you posted thanks

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 7:28 am
by stealth
i run a 650cfm 4 barrel vac secondary witt 55 primarys and 62 sec
cheers stealth 8-)

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 11:23 am
by 2.6_sigma_skidder
hi stealth how much engin work do u have done to it ? im pretty stock at the moment and still run in top 2s in my class im just trying to sqeeze more out of her . with out pulling it apart and shaving head port work so on lol

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 12:17 pm
by stealth
im doing work on it at moment but it was
dead stock with balance shafts out and stage cam whacked in for a laugh
went ok had to much blo by so im rebuilding and going to astron 2 m4 head
with compression
and i use a custom manifold inlet and exhuast
cheers stealth 8-)

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 3:41 pm
by 2.6_sigma_skidder
that sounds cool stealth my new motor is zero deck hight 40 tho over and i have a ported magna head custom 45 mm inlet and custom 50 mm primary headers four into one straight threw 3.5 inch stainless system . dont know what it will go like but hope it will be ok

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 3:54 pm
by stealth
sounds alright is your inlet manifold a two barrel or 4 ?
should go nicely what cam spec are you running and what comp?
cheers stealth 8-)

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 4:20 pm
by 2.6_sigma_skidder
hi its a two barrel atm but easy to change as when i made it i left a large chamber on it for the injevtion i was going to use but have gone diff direction now. im running a 304 duration billet cam and heavy duty springs as well as im running vw tappet ajusters as they hav the little half ball swivle ends on them comp should be around 10.2 . 1 there abouts

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 4:52 pm
by cheaterparts
2.6_sigma_skidder wrote:hi its a two barrel atm but easy to change as when i made it i left a large chamber on it for the injevtion i was going to use but have gone diff direction now. im running a 304 duration billet cam and heavy duty springs as well as im running vw tappet ajusters as they hav the little half ball swivle ends on them comp should be around 10.2 . 1 there abouts
what lobe sep has the cam got you may wont a little more comp
if its 110 deg or under I would be bumping up to 11 :1

if its any help I machined 3.5 mm off a magna head and run flat tops the comp is 11.2:1
still runs BP 98 pump fuel and is happy on 34 deg total advance
my cam is around that size with 107.5 deg lobe centre

and the swivel end adjusters seem to work ok I've tested mine to 7200 rpm no probs

Re: 350 holley on 2.6 astron

Posted: Mon Apr 13, 2009 6:26 pm
by 2.6_sigma_skidder
yer id have to check with the engine builder as he taken care of the cam

Re: 350 holley on 2.6 astron

Posted: Sun Apr 19, 2009 6:57 pm
by 2.6_sigma_skidder
just to fill everyone in i got the holley on today and omg what a change best 300 dollars iv ever spent the car runs very smooth so much power gain its not funny runnin 57 jets and 55 power valve bit fuely but suits my needs as i run 90 seconds at a time at full noise so better to keep it rich up top end