Crappy throttle response and detonation...Save me!!

Frankenstang65 · 12-28-2001, 02:21 AM

I tried the tblspoon of gas down the primaries trick and it went putt, putt, putt, and pushed some foul smelling (grayish) smoke out of the tailpipes. But it still wouldn't run on it's own. I'm gonna pull the carb tonight, I'll change the power valve and do some cleaning, hopefully that will take car of it.

I jacked the back end up and disconnected the fuel line, and the gas came out in a stream. So from this point on I'll assume that the problem is either in the pump or carb.

Since I can't get it running, I may have to resort to 70_Nitrous_Eate's "super-ghetto very unproffesional" way of checking fuel pump pressure...lol. Let me know how to do that when you get the chance.

Thunderbolt, thanks for the help. I was adjusting the screws when I talked about richening the mixture. It ran great for a long time without any problems, so I'm thinking that it is not a case of the motor needing more fuel via bigger jets. I'm leaning (optimistically) towars a dirty carb, too.

I'll keep you up-to-date on what happens next...thanks.

12-28-2001, 02:21 AM	#9
Frankenstang65 Registered Member Join Date: Sep 2001 Location: Seattle, WA Posts: 79	I tried the tblspoon of gas down the primaries trick and it went putt, putt, putt, and pushed some foul smelling (grayish) smoke out of the tailpipes. But it still wouldn't run on it's own. I'm gonna pull the carb tonight, I'll change the power valve and do some cleaning, hopefully that will take car of it. I jacked the back end up and disconnected the fuel line, and the gas came out in a stream. So from this point on I'll assume that the problem is either in the pump or carb. Since I can't get it running, I may have to resort to 70_Nitrous_Eate's "super-ghetto very unproffesional" way of checking fuel pump pressure...lol. Let me know how to do that when you get the chance. Thunderbolt, thanks for the help. I was adjusting the screws when I talked about richening the mixture. It ran great for a long time without any problems, so I'm thinking that it is not a case of the motor needing more fuel via bigger jets. I'm leaning (optimistically) towars a dirty carb, too. I'll keep you up-to-date on what happens next...thanks. __________________ 1965 Coupe: 351W, comp cam, Aluminum Systemax II heads (2.02/1.60), 1.7 Cobra full roller rockers, Edelbrock intake, Holley 650 double pumper, Mallory Unilite, MSD-6AL, MSD Blaster 2 coil, MSD heli-core plug wires, Hedman headers, 2 1/2" exhaust (GT style) w/ 40 series delta flows, 69 C4 w/ shift kit, shelby traction bars, 3.55:1 rear Daily Driver: 1989 GT- 5spd, K&N (no silencer), Shorty Headers, King Cobra Clutch, Flowmaster Force II Cat-back