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11-10-2014, 03:52 PM
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#1 |
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C10 Collector
Join Date: Oct 2003
Location: Baton Rouge, LA
Posts: 417
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307 input needed
My 67 has a 307 that is not original. From the numbers I have a 307 from a 1968 B-Body backed with a TH400. It had a 70's era smog intake with a mismatched 2 barrel. I installed a late 60's aluminum corvette intake, quad adapter and edelbrock 600. It runs ok, but seemed low on power. When I did the intake I noticed that the valley was super super clean. Same for the heads, no buildup up top. Well 300ish miles into me owning it and the cam is shot. Starting backfiring really bad yesterday, pulled the covers and had some loose rockers. I adjusted the rockers and I've got a few not moving.
So, how much lift can I run on stock heads if I just put a cam and lifters in it? Any recommendations on cam? I have 3.73 gears on 29" tires, TH400, unknown stall (seems stockish) I was looking at the summit 270 cam kit. .398/.421 lift but could I go bigger?
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///Ryan 1972 Chevy C-10-Bagged, Blown LT1, 700r4, Suicide Doors 1967 GMC- SC & Cam'd 4.8, built 4l80, 3200 stall, posi, 4.10 1967 Chevy LWB- 454 and patina 1971 Blazer - Rusty 1968 Crewcab project Last edited by Bagd72Chevy; 11-10-2014 at 03:57 PM. |
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