CLASS RACER FORUM - View Single Post - Rochester 2gc

MAURICE BLENDHEIM · 02-11-2017, 11:54 PM

Michael… 1970: 7040117, 7040118, 7040119, 7040120. 1971: 7041118, 7041137. 1972: 7042118, 7042838. 1973: 7043118, 7043119. 1974: 7044118. 1975: (4 barrel only). 1.25=381cfm, 1.312=423cfm, 1.375=435cfm. The are all referred to as "Large Base" starting in 1970. I hope this helps…Maurice.

02-11-2017, 11:54 PM	#3
MAURICE BLENDHEIM Senior Member Join Date: Jun 2011 Location: Langley (no igloos), British Columbia, Canada Posts: 568 Likes: 307 Liked 281 Times in 86 Posts	Re: Rochester 2gc - Chevy 400 Michael… 1970: 7040117, 7040118, 7040119, 7040120. 1971: 7041118, 7041137. 1972: 7042118, 7042838. 1973: 7043118, 7043119. 1974: 7044118. 1975: (4 barrel only). 1.25=381cfm, 1.312=423cfm, 1.375=435cfm. The are all referred to as "Large Base" starting in 1970. I hope this helps…Maurice. Last edited by MAURICE BLENDHEIM; 02-12-2017 at 12:12 AM.