Posted By: MoparJ
4160 Questions - 10/08/09 11:27 PM
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I recently switched over to a 4160 Holley (600 cfm) that I had on my shelf onto my 318 with 8:5:1 compression, hooker headers, 3 angle valve job to heads, Comp XE268 cam, 2500 TC, and 3.23 gears. I had an Eddie 600 cfm on it before. The low end on the Holley is fairly good, but it seems that when floored, there is a tad less grunt above 3000 rpm and it feels like the revs waver slightly, like it may be lean. It doesnt pull quite as hard as it did when opening up the secondaries on the freeway at 70 mph. This carb has the secondary plate in the rear and 72 jets in the primaries. Is there a way to richen the carb up on the top end a bit with converting to a 4150 style setup with actual metering blocks and jets for the secondaries?
I recently switched over to a 4160 Holley (600 cfm) that I had on my shelf onto my 318 with 8:5:1 compression, hooker headers, 3 angle valve job to heads, Comp XE268 cam, 2500 TC, and 3.23 gears. I had an Eddie 600 cfm on it before. The low end on the Holley is fairly good, but it seems that when floored, there is a tad less grunt above 3000 rpm and it feels like the revs waver slightly, like it may be lean. It doesnt pull quite as hard as it did when opening up the secondaries on the freeway at 70 mph. This carb has the secondary plate in the rear and 72 jets in the primaries. Is there a way to richen the carb up on the top end a bit with converting to a 4150 style setup with actual metering blocks and jets for the secondaries?