Difference beteen square bore and spread bore carbs.

82 GT · 03-08-2006, 11:20 AM

What's the difference? How can you tell them apart and which one is more desirable?

lx mike · 03-08-2006, 03:31 PM

spread bore carbs have smaller primary venturi's and the secondaries are larger and square bore carbs have all 4 the same size.

03-08-2006, 11:20 AM	#1
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Difference beteen square bore and spread bore carbs. What's the difference? How can you tell them apart and which one is more desirable? __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

03-08-2006, 03:31 PM	#2
lx mike Undescribable Join Date: Sep 1998 Location: Ft Myers Fla Posts: 1,539	Re: Difference beteen square bore and spread bore carbs. spread bore carbs have smaller primary venturi's and the secondaries are larger and square bore carbs have all 4 the same size. __________________ Rice Haters Club Member #101