Found deal on sweet carb came of bbc big inch like the boat it is set up with 80 in front with 5.5 PV and 88 in rear jet extension and no PV has anyone had experince wit removing the powervalve I kno most performance holley carbs come factory with no rear PV what u guys think I can get this carb on trade deal without costing me any lake money running a 800 shitelbrock at the moment need a carb current setup 468 merlin heads ported team g and shitelbrock any input before I pull trigger on this carb would be great SOCAL ROX!

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Crewchief heard u were the carb guy!! Ya I plan on just tryin it and makin adjustments as needed reading plugs etc. Ive just nvr ran a carb with blocked PV just curious if anyone had race type setup with blocked rear PV and up'd jet size to compensate? Crewchief u the man!

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Just for a quick reference the 660 Holley (list 4224) came factory with a blocked PV and had 76 primary jetting, while the 650DP (list 4777) came with 67 primary jets and a PV.

Now an 850DP (list 4781) would have come with 80 pri / 78 or 80 sec jetting and 6.5 PV pri & sec.  So, if the secondary power valve is blocked off the jump to 88's is going to be a good starting point.



 

Sweet! Thanx a million crewchief that makes me feel better bout this carb im gonna try it and big block yes thats my current setup unfortanatly with the shitlebrock

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Thanx again crew was just worried bout that no PV thing cause my boat does cruz its not WOT everytime out I do have vacum gauge I thinkni van make it wrk  hopin I stilk have drivebilitly per say but I think its safe to try gota be better than the eddy on it now

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Sweet thanx carrea im def gonna use tnis carb now! Thanx everyone for the quick response im gonnabtryin pick up this carb in nxt couple days and hopefully get out for couple test hits in nxt week or so and take few jets and kep carrea jet size in mind lil larger than mine boat been suckin my wallent straight dwn the intake!!! And thinkin boat naming this bitch rain maker last two times out for test hit brought stormy rains both times ugh!!

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To my brother lets get your boat on the water buddy we miss you out there.  Here is a couple of pics of my brothers boat also just got done.  Nice work the race is on lol.  Nice boat lets get to the river.