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Old 09-08-2006, 02:04 PM
Lonestar's Avatar
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Cold starts

My 327 w/(1)-4 Holley runs exceptionally well when fully warmed up, but until then it struggles. It doesn't matter what the outside temp is, if it sits until it cools down it runs bad until completely warmed up to 180 deg. +/-. Choking is not an option as it jst fouls the plugs before the engine can warm up.

I was thinking about putting a 4 hole spacer on to see if that would help with fuel atomization when cold but I do not have enough room under the 7" scoop.

My thought was to make a 4 hole plate that fits into the intake as there is an appx. 3/4" carb mount flange on top of the plenum. Since I use a throttle linkage plate under the carb as it is, I figured I could attach it to the plate then insert it into the plenum (see pic).

I have not run the numbers through the p.c. yet, but what do you all think of this and/or do you have any thoughts that may help with said cold start issue?
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Old 09-08-2006, 02:22 PM
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Old 09-08-2006, 05:41 PM
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tunnel rams are for rpm's,you will need it too warm up before cranking the r's.
what do you run for a thermostate?have you played around with that?what plugs are you running maybe try a hotter plug,possible the gaps are not right for the set up.
not being a jerk just asking questions.
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