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Hmm, I got to look at it more. When pull down on the throttle assembly it will decrease RPM, so something is making it open up more…..

Update-adjust the front floats and got the car to idle. Then when it warmed up idle speed jumped up to 1100rpm, backed down the idle screw with no effect. Gasket on the needle seat assembly is old and hard, so thinking that might be letting fuel by thus increasing RPM. I’ll replace the gaskets...

Thanks, was thinking I probably need to re adjust the float level. Would removing the carb inlet filters have any effect on this?

7psi. I’ll check for debris. Thanks!

Hi everyone, upgraded my fuel system today to remove a home made fuel rail on my 67 coronet with a 440 with 870 Holly Street Avenger. Here’s what I upgraded Installed new Carter Fuel Pump M6903 Installed new Comp Cams push rod with chromoly tip, mine was measuring at 3.05”. Upsized fuel line...

67 coronet. Throttle return springs is a a generic double spring from summit.

Well winters coming and want to do my cam swap any thoughts on the cams below? Like to stick with a mechanical cam. https://www.manciniracing.com/cocaexenca1.html or https://www.manciniracing.com/came28addu.html

Swapped the plugs, looks pretty fouled. Guessing I should swap these out every 2k miles or so? thinking of pull the motor on the winter to swap out the cam. For what’s it worth the car is kinda of a dog, I was expecting it to be faster than what it is. Thinking with the cam change hopefully be...

First time no start after about an hour of driving 10 miles. Started fine the next day. Swapped out the MSD Blaster 2, read somewhere the ecu doesn’t like it and put in a flame thrower. 2nd time, does at low speed. Started the next day. Replaced ECU with cheap one from summit. thinking the...

for the car to run better and reliable. Had to be towed home a few times. Swapped the ecu thinking that was the problem. But a few people said that the carb was to big. Just want to be able to drive the car with fear of breaking down. Seems that I keep needing to adjust the idle screw, set it...

havent ran at the track yet.

no idea on the torque converter, got the car 1.5 years ago. Any way to tell with out dropping the trans?

Hello, thinking about swapping out my Holley Street Avenger 870cfm, think the carb is a little to big for my motor set up. Car is for cruising but like to take it down the track a couple times a year. Any recommendations on the carbs below? Car/Motor specs below AVS2 800CFM Slayer Quick Fuel...