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Discussion Starter · #1 ·
Victor Jr Intake/850 double pumper all of it year old can hear run on car. 550

186 casting gm double hump heads. new valves,dual valve springs,1.6 rockers,port/polished,moroso valve covers 500 compelete

stock gm water pump 12 passes 50 bucks

billet msd dist. 250

shortblock 355 stock cast crank checked etc,new bearings, speed pro pistons,gm pink rods,7qt oil pan 800

or can have compelete motor can hear run for 2,500
 

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Discussion Starter · #5 ·
if it's a 406 it isn't, i have a 355 with 13.5:1 and only run a 950cfm on it and its actually 2 big. it goes 5.9x's @ 112-113 though in the 1/8th. honestly 850 would be perfect for a 406 how much compression?
 

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406SBC is all youll ever need
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Trust me it's to small. I already have a 850 and with my new combo with
two stages of Nos an 850 is gonna choke it down. Thats why I'm gonna buy a 1050 carb.
 
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