correct carb????

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mopowermatt

mopowermatt
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Jul 27, 2005
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Right now I have a holly 4 barrel vac. sec.

my setup is

trw forged pistons stock 360 design
stock 360 rods and crank
915 heads 2.02 int 1.60 exhaust major quality port and polish 65.2cc
crower 509 cam
victor jr intake
hedman Big tube 1/78 primaries 3 in. collector 3 in exhaust 2 2chamber flowmasters

msd ignition, msd coil

full manual valvebody

How about a carb spacer should I get one and how big? Any Idea's on jet sizing or any carb tweeking I should do??????


my buddy is telling me I should get an 850 w/mechanical secondaries and I'm thinking that's kind of big. I just started my car for the first time today and that thing was super loud. It's a street car. I want it to run as strong as I can get it. is an 850 too big. You guys probally already know what I'm runnin you always help out a lot. Thanks I'm just a rookie this is the first v8 I've ever really built up. Thanks budget budget budget
 
Poor old 360 might drown with a 850, my 360 has 915J ported heads, 10:2:1 comp, Offenhauser Porto Sonic manifold, Chrome box etc etc ( 1-5/8 primaries ), currently using MP 292 duration cam & Holley 750 DP, size 71 jets front, size 81 jets rear, front 2.5 PV & no rear PV, also running NGK BP7ES spark plugs, engine runs strong & idles nice
 
on the cheap...3310 Holley (750 vaccum secondary)
2nd choice...770 Street Avenger
3rd choice 4150 Holley (700cfm double pumper)
 
650 Speed demon w/mech secondaries if your buying a new carb. this will give you real crisp street manners and on that engine will work just great.
try a 1/2" 4 hole spacer or a "Super Sucker".
 
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