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trndkll67 · 05-09-2007, 01:11 AM

Sorry for the delayed response, been out of town....

The cam specs are:

Intake 448
Exhaust 472

Duration .050
204 Intake
214 Exhaust

I replaced the old 1406 with the Edelbrock 1400 600cfm. I got some flack from edelbrock becasue this carb is "prescribed" for a SB chevy, BUT its the exact same as a the 1406 except with no linkage adapter. I installed the linkage adapter and still have the same problems. Edelbrock says I can't tune it for the 302 except by trial-and-error. I thinks thats BS, but what do I know!

Its still running poor at warm idle, I have adjusted the high idle screw and haven't noticed much difference. I've got the choke set at "one notch forward". Should I toss it and a get a 1406, or go with something larger (>650cfm)?

05-09-2007, 01:11 AM	#2
trndkll67 Registered Member Join Date: Dec 2004 Location: Seattle, WA Posts: 44	Re: Carb Issues Poor idle after warm up? Sorry for the delayed response, been out of town.... The cam specs are: Intake 448 Exhaust 472 Duration .050 204 Intake 214 Exhaust I replaced the old 1406 with the Edelbrock 1400 600cfm. I got some flack from edelbrock becasue this carb is "prescribed" for a SB chevy, BUT its the exact same as a the 1406 except with no linkage adapter. I installed the linkage adapter and still have the same problems. Edelbrock says I can't tune it for the 302 except by trial-and-error. I thinks thats BS, but what do I know! Its still running poor at warm idle, I have adjusted the high idle screw and haven't noticed much difference. I've got the choke set at "one notch forward". Should I toss it and a get a 1406, or go with something larger (>650cfm)? __________________ trn6d7kll "...I will rain down upon thee with great vengance and furious anger......." -Jules W.