Thread: Loss of power...???

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Originally Posted by HellCaminoKid

Ok yet another problem, i think i get a new one weekly with this thing. Noticed this a bit yesterday and again today. When I first start the car up, wait till water temp gets to be about 140 then start to drive.... the car is very responsive and has loads of power. Once the car reaches about 190 it feels like im stepping on a sponge when pressing the gas pettle.... the car just isn't as responsive as it was. Shut it down, let it cool, runs great again until temp gets to 190.

Today installed my MSD Street Fire distributor, MSD wires and new plugs, it solved MANY other issues but not this one. Any Ideas??? I'm thinking possible carb issue???? Holley 650 dual feed with a trick kit just installed about a year ago, had no prblems with it up until this point.

P.S. I pick up my 6A box tomorrow.

Are you 100 % sure it happens when it hits this temp?
Lets go back and look at other issues first.Timing,jetting,fuel line dia. etc.
Tell us a little more about your set up.

Ok, yet again spent pretty much the whole day, installed the 6A box, tweaked the carb a little more, and adjusted my timing, first with the light *failed attempt* then again by ear and how it felt driving it *much better success* well the issue with the loss of power dosn't seem to be as bad now, could it have possibly been bad gas?? I also noticed that before installing the new distributer and ignition box, I had a good bit of moisture that would build on the threads and base area of my plugs, now with the new ignition, it doesn't seem to be happening anymore.

In my experience, bad gas will act lean rather than rich. It sounds like changing the ignition system is giving you a better spark to burn the A/F. Good. I am assuming you changed your plugs as well, right?

Also, with the light, what is your timing set at now that it seems to run better? How far did you have to advance it to get "much better success" by ear? If you're still having problems, that double pumper may need a tune-up, time to break out the vaccuum guage and tach after your timing is set (with the light).