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Rochester G2 ?'s

961 views 2 replies 3 participants last post by  Tim 
#1 ·
Rochester G2 ?\'s

Ok now I have a nother option to consider on this dang carb conversion! I am also considering the Rochester G2 from a '74 pickup with a 350 motor. Did they put different cfm's on different motors or is it the same carb on a 292 and a 350? Also, anybody who has done this have any comments on the power gain?

Thanks

My girlfriend said if I spent one more dime on my Jeep she would leave. Man I'm going to miss her!
 
#2 ·
Re: Rochester G2 ?\'s

I asked a simular question not too long ago and got no answers either.I know somewhere between 65 & 75 Rochester changed the size of the base.so it does not bolt right up on the later ones.I know I can build anadapter but don't want to make the effort if it is overcarbed.Information on the web is not all that helpful ,as usual.but I have a buddy at work who is a corvett freak and he is going to look it up if he can find anything.

Ray
Learn to let go of what does not serve you ,but forces you to serve it
why does everyone ask if I am gonna paint it ?
 
#3 ·
Re: Rochester G2 ?\'s

Rochester 2G cfm ratings:

1 1/4" flange, 1 7/16" throttle bore, 1 3/32" venturi - 278 cfm
1 1/2" flange, 1 11/16" throttle bore, 1 3/16" venturi - 352 cfm
1 1/2" flange, 1 11/16" throttle bore, 1 1/4" venturi - 381 cfm
1 1/2" flange, 1 11/16" throttle bore, 1 5/16" venturi - 423 cfm
1 1/2" flange, 1 11/16" throttle bore, 1 3/8" venturi - 435 cfm

Tim
'66 Jeepster Commando w/Buick 252/4.1L V-6
'70 Wagoneer w/Buick 350 V-8
'76 Wagoneer w/AMC 401 V-8 (sold)
 
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