Help!! Carb Gremlin

[leeroy]

Chasing a carb gremlin i think.

Particulars: 604 with a willys 604 crate carb on AV Gas. Driver says it does fine on straight away, once he picks up throttle on exit it spits + sputters like it's hitting the chip. Floats adjusted up + down, jets richer + leaner, still no change. Could it be a bad power valve? Seems to only happen on corner exit. Thanks..

[rubbinsracin]

Sounds ignition related.

[let-r-eat]

Under load will more than likely be ignition or an internal engine problem.

[dirty white boy]

^^^^^^what he said!!!

[TALON75]

Fuel pressure? If your not regulated then you could be flooding the motor when you back out of the gas on entry .

[leeroy]

Thanks for the suggestions, did talk to willys today and got some good info and have a few things to check. not sure it's the carb, maybe good ole MSD. Carb is regulated but I gotta check the floats and such. Thanks again for the input and if you have anything else please post. Was doing some interesting reading on grounding each head and block, I will definately be running some grounds reguardless of any other issues.

[leeroy]

Do you use the grounding straps or reg battery type cable?

[speedbuggy]

Make sure a battery post (or cable) is not shorting out somewhere.

I had exact same symptoms once and it turned out that the battery positive post was hitting against a new stick of lead I had added. It only hit against it when I would get on the gas coming off the corner. The chassis flexed just enough for the post to hit the lead bar.

We initially thought it was a carb problem...

[dirty white boy]

Make sure a battery post (or cable) is not shorting out somewhere.

I had exact same symptoms once and it turned out that the battery positive post was hitting against a new stick of lead I had added. It only hit against it when I would get on the gas coming off the corner. The chassis flexed just enough for the post to hit the lead bar.

We initially thought it was a carb problem...

ol cables can carrode under cover an look good as new but wont carry the juice as it should,..check them with a multy meter!!

[leeroy]

yeah we are running down every wire, willys didn't seem to think it was a carb issue either. Only way to tell at this point is go over everything and see what happens on the track. Hey Stock Car, where you finding your grounding straps? i checked with some auto parts stores and all they can come up with is 12" straps.

[leeroy]

Never mind, saw your other post and that you are getting them from u-pull-it. Thanks.